The Ultimate Guide To OSHA Requirements For Solar Panel Cleaners

Applies when: All covered employers

Official wording — exact excerpt

If a particular standard is specifically applicable to a condition, practice, means, method, operation, or process, it shall prevail over any different general standard which …

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What it means

A specific applicable standard takes priority over a general standard addressing the same hazard.

Application to solar panel cleaners — ISCA interpretation

Select the rules for the installation, task and employee exposure before applying this guide; a solar cleaning job title alone does not determine coverage.

Employer action: Record the applicable work category and jurisdiction before selecting controls.

Applies when: When work is construction

Official wording — exact excerpt

Definition. For purposes of this section, Construction work means work for construction, alteration, and/or repair, including painting and decorating. See discussion of these terms in …

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What it means

Routine cleaning of an existing array is generally maintenance.

Application to solar panel cleaners — ISCA interpretation

Cleaning connected with installation, alteration or substantial repair may be construction. Assess the actual work; being on a construction site does not by itself settle every classification question.

Employer action: Record the applicable work category and jurisdiction before selecting controls.

Applies when: When Subpart S covers the worker and task

Official wording — complete subsection

Work performed by unqualified persons on, near, or with the installations listed in paragraphs (c)(1) through (4) of this section; and

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What it means

Check paragraphs (a), (b) and (c) together.

Application to solar panel cleaners — ISCA interpretation

Unqualified cleaners can be covered when working around generation installations, while qualified persons working on or directly associated with those installations can fall under 1910.269. Do not assume all rooftop work is Subpart S or all utility work is identical.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Foreseeable electrical exposure meeting paragraph (a)

Official wording — exact excerpt

Other employees who also may reasonably be expected to face a comparable risk of injury due to electric shock or other electrical hazards …

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What it means

Solar cleaners are not listed, but the accompanying note extends training to comparable electrical exposure.

Application to solar panel cleaners — ISCA interpretation

Damaged wiring and equipment contact can create that exposure. The marked-occupation footnote concerns proximity to exposed circuit parts at 50 volts or more to ground sufficient to create a hazard. Related paragraphs (b)(1), (b)(2), (b)(3) and (c) address relevant practices, unqualified workers, qualification and risk-based training. A cleaning certificate alone does not establish electrical qualification.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Covered work with exposed live parts

Official wording — exact excerpt

Live parts to which an employee may be exposed shall be deenergized before the employee works on or near them …

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What it means

Exposed live parts to which an employee may be exposed must be deenergized unless the employer can establish the specified exception.

Application to solar panel cleaners — ISCA interpretation

Routine cleaning does not justify touching exposed live parts. Stop and obtain qualified assistance where safe separation cannot be maintained. Paragraph (b) governs electrical deenergizing, lockout/tagout and verification; switching off an inverter is not evidence that every PV conductor is deenergized. Paragraph (c)(3) addresses overhead lines, (c)(7) conductive equipment and (c)(8) portable ladders. For unqualified persons near overhead lines, the rule starts at 10 feet up to 50 kV and increases above that voltage; consider the entire pole and its possible movement.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Cord-and-plug equipment used by cleaners

Official wording — exact excerpt

Portable cord- and plug-connected equipment and flexible cord sets (extension cords) shall be visually inspected before use on any shift for external defects (such as …

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What it means

Inspect applicable portable equipment and extension cords before use on each shift, subject to the stated exception for protected, stationary equipment.

Application to solar panel cleaners — ISCA interpretation

Remove damaged items from service under (a)(2)(ii). Paragraph (a)(5) requires equipment suitable for highly conductive locations or locations where employees are likely to contact water; (c)(1) restricts electrical testing to qualified persons. A water-fed cleaning operation needs suitable equipment and power arrangements.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Exposure to potential electrical hazards

Official wording — exact excerpt

Employees working in areas where there are potential electrical hazards shall be provided with, and shall use, electrical protective equipment that is appropriate for the …

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What it means

Select electrical protection for the actual hazard and body parts exposed.

Application to solar panel cleaners — ISCA interpretation

Related provisions address insulated tools, barriers, signs and attendants. Rubber-coated work gloves and ordinary cleaning poles are not automatically electrical protective equipment. PPE does not authorize an unqualified cleaner to work on exposed energized parts.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Applicable electrical installations and equipment

Official wording — exact excerpt

Examination. Electric equipment shall be free from recognized hazards that are likely to cause death or serious physical harm to employees. Safety of equipment shall …

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What it means

Damaged or unsuitable power equipment can expose cleaners to shock or fire.

Application to solar panel cleaners — ISCA interpretation

Paragraph (b)(2) requires listed or labeled equipment to be used according to its instructions; (g)(1) addresses access and working space and (g)(2) guarding live parts. Keep cleaning equipment, tanks and hoses out of required electrical working spaces.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Temporary wiring with the conditions stated in this paragraph

Official wording — exact excerpt

The following requirements apply to temporary wiring installations that are used during construction-like activities, including certain maintenance, remodeling, or repair activities, involving buildings, structures or …

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What it means

Assess temporary supplies for pumps and other cleaning equipment under the applicable ground-fault protection provisions.

Application to solar panel cleaners — ISCA interpretation

This subsection is not a blanket claim that every receptacle everywhere requires the same arrangement. Check supply type, receptacle rating, user activity and the permitted alternatives against the full text.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Extension cords and portable power supplies

Official wording — complete subsection

Unless specifically permitted otherwise in paragraph (g)(1)(ii) of this section, flexible cords and cables may not be used:

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What it means

Temporary pump or charger arrangements must not become prohibited substitutes for fixed wiring or run through doors, walls or ceilings in prohibited ways.

Application to solar panel cleaners — ISCA interpretation

Related provisions govern permitted uses, strain relief and connections. Protect cords from water, crushing and abrasion without concealing damage.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Cleaning within a classified location

Official wording — exact excerpt

Documentation. All areas designated as hazardous (classified) locations under the Class and Zone system and areas designated under the Class and Division system established after …

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What it means

At an array on an industrial site, nearby flammable gas, vapor or combustible dust can change equipment requirements.

Application to solar panel cleaners — ISCA interpretation

Obtain the site's classification and use equipment approved for that location. A normal pump, motor or battery tool may be unsuitable there.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: PV systems within this section's scope

Official wording — exact excerpt

Solar photovoltaic systems. This paragraph covers solar photovoltaic systems that can be interactive with other electric power production sources or can stand alone with or …

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What it means

This paragraph specifically identifies solar photovoltaic systems.

Application to solar panel cleaners — ISCA interpretation

Installation requirements help cleaners understand the equipment around them; they do not qualify cleaners to install, repair or modify it. Review (f)(1) and (f)(2) for circuit separation and disconnecting provisions and route electrical defects to the responsible qualified personnel.

Employer action: Assess the exposure, set the work boundary and instruct the crew before cleaning.

Applies when: Generation, transmission or distribution work within scope

Official wording — complete subsection

This section covers the operation and maintenance of electric power generation, control, transformation, transmission, and distribution lines and equipment. These provisions apply to:

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What it means

Solar generation facilities may bring work within this standard.

Application to solar panel cleaners — ISCA interpretation

Determine coverage from the installation and work, including the relationship with 1910.331, rather than merely array size. Review (a)(2) training, (a)(3) host/contractor information exchange, (c) job briefings, (d) hazardous energy at generation installations, (l) energized work and (v) generation provisions. Not every provision applies to every cleaner.

Employer action: Confirm coverage and coordinate the work plan with the host employer.

Applies when: General industry access and work areas

Official wording — complete subsection

Walking-working surfaces are maintained free of hazards such as sharp or protruding objects, loose boards, corrosion, leaks, spills, snow, and ice.

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What it means

Route hoses and cables to prevent trips; control algae, wet surfaces, debris and uneven ground.

Application to solar panel cleaners — ISCA interpretation

Paragraph (d) requires inspection and correction or guarding of hazardous conditions. Wet cleaning makes surface conditions part of the work plan, including safe access and exit.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: Ladders used for access

Official wording — complete subsection

Ladders are inspected before initial use in each work shift, and more frequently as necessary, to identify any visible defects that could cause employee injury;

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What it means

Inspect ladders before initial use in each work shift and more frequently when needed.

Application to solar panel cleaners — ISCA interpretation

Related provisions cover removing defective ladders, secure positioning, climbing technique and extending portable ladder side rails above an upper landing. Carrying a bulky robot or cleaning pole must not compromise safe climbing.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: Stairways used to reach arrays

Official wording — complete subsection

Handrails, stair rail systems, and guardrail systems are provided in accordance with § 1910.28;

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What it means

Existing stairs used by the crew must meet the applicable stairway requirements.

Application to solar panel cleaners — ISCA interpretation

Check handrails, clearance and safe use; route hoses so they do not obstruct access or create a trip hazard. This is relevant to internal roof access and elevated plant walkways.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: When these access methods are used

Official wording — complete subsection

Scaffolds. Scaffolds used in general industry must meet the requirements in 29 CFR part 1926, subpart L (Scaffolds).

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What it means

General industry scaffolds must satisfy the referenced construction scaffold requirements.

Application to solar panel cleaners — ISCA interpretation

Rope descent has separate anchorage, inspection, training, rescue and operating requirements in (b). Do not treat rope access or a scaffold as an informal substitute for a roof-access plan.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: General industry fall exposures within scope

Official wording — exact excerpt

Except as provided elsewhere in this section, the employer must ensure that each employee on a walking-working surface with an unprotected side or edge that …

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What it means

The general rule addresses unprotected sides and edges at 4 feet or more above a lower level.

Application to solar panel cleaners — ISCA interpretation

Check the specific provisions for holes, skylights, runways and other conditions. Low-slope roofs have distance-based provisions in (b)(13), including conditions for designated areas and temporary, infrequent work; routine cleaning must not automatically be labeled temporary and infrequent. Portable ladders and some platforms have different governing provisions.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: When using systems governed by this section

Official wording — exact excerpt

The top edge height of top rails, or equivalent guardrail system members, are 42 inches (107 cm), plus or minus 3 inches (8 cm), above …

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What it means

Guardrails, safety nets, designated areas, covers and falling-object measures must meet their specific criteria.

Application to solar panel cleaners — ISCA interpretation

A parapet or decorative roof railing is not automatically a compliant guardrail. Check height, strength, openings and the system's intended function before relying on it.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: Employees exposed to covered fall hazards

Official wording — exact excerpt

Before any employee is exposed to a fall hazard, the employer must provide training for each employee who uses personal fall protection systems or who …

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What it means

Train workers before exposure to fall hazards.

Application to solar panel cleaners — ISCA interpretation

Related paragraphs require instruction in equipment use and retraining when changes or inadequate knowledge warrant it. Roof cleaners need to understand their actual anchors, system, access route and rescue arrangements, not simply have attended a generic height course.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: When personal fall arrest is used

Official wording — complete subsection

The employer must provide for prompt rescue of each employee in the event of a fall.

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What it means

Plan how a suspended cleaner will be rescued promptly.

Application to solar panel cleaners — ISCA interpretation

Related provisions address anchors, compatibility, inspection and arrest performance. A harness without a suitable system and a practicable rescue arrangement does not complete the protection.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: Equipment within this section's scope

Official wording — exact excerpt

Scope. This section covers powered platform installations permanently dedicated to interior or exterior building maintenance of a specific structure or group of structures. This section …

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What it means

Permanent suspended platforms and associated building-maintenance systems have equipment-specific requirements.

Application to solar panel cleaners — ISCA interpretation

Check coverage, inspection, training and fall protection before using them to access facade or roof-edge arrays. This is distinct from an ordinary mobile boom lift.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: Covered vehicle-mounted aerial lifts

Official wording — complete subsection

Only trained persons shall operate an aerial lift.

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What it means

Permit only trained persons to operate covered lifts.

Application to solar panel cleaners — ISCA interpretation

Related paragraphs address fall protection, positioning and loading. Verify the specific lift type and applicable rules; a scissor lift is not automatically governed by every provision written for a boom-supported aerial lift.

Employer action: Check the access method, protective system and rescue arrangements before use.

Applies when: Workplace hazards requiring PPE

Official wording — exact excerpt

The employer shall assess the workplace to determine if hazards are present, or are likely to be present …

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What it means

Assess hazards before selecting protective equipment.

Application to solar panel cleaners — ISCA interpretation

Include chemicals, electrical exposure, sharp frames, slippery surfaces and falling equipment. Related paragraphs require written certification of the assessment, suitable fit, training and payment subject to specified exceptions. PPE is one part of the control plan.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: Flying particles, chemicals or other listed eye hazards

Official wording — exact excerpt

The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from flying particles, molten …

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What it means

Panel cleaning may expose workers to splashes, grit, debris or pressurized spray.

Application to solar panel cleaners — ISCA interpretation

Select protection for the assessed hazard; sunglasses alone may not provide splash or impact protection. Check product ratings and compatibility with other PPE.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: Harmful airborne exposure or respirator use

Official wording — exact excerpt

the primary objective shall be to prevent atmospheric contamination. …

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What it means

Dust, aerosolized contamination and chemical mist may require engineering controls and respiratory protection.

Application to solar panel cleaners — ISCA interpretation

Where respirators are required, the applicable written program, medical evaluation, fit testing, training and selection requirements apply. Voluntary use has separate provisions in (c)(2); do not prescribe a respirator without assessing exposure and suitability.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: Potential head injury from falling objects

Official wording — exact excerpt

The employer shall ensure that each affected employee wears a protective helmet when working in areas where there is a potential for injury to the …

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What it means

Assess risks when working beneath elevated crews, lifting robots or moving around structures.

Application to solar panel cleaners — ISCA interpretation

A head-protection requirement depends on the hazard. Electrical head protection has an additional requirement in (a)(2) where the employee's head could contact exposed electrical conductors.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: Foot injury or electrical hazards covered by this paragraph

Official wording — exact excerpt

General requirements. The employer shall ensure that each affected employee uses protective footwear when working in areas where there is a danger of foot injuries …

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What it means

Choose footwear for the assessed risks, including heavy equipment, punctures and residual electrical hazards.

Application to solar panel cleaners — ISCA interpretation

For cleaning work, slip resistance is also a practical selection consideration; ordinary footwear should not be described as electrically protective without a suitable rating.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: When such equipment is required and used

Official wording — exact excerpt

Insulating equipment shall be inspected for damage before each day's use and immediately following any incident that can reasonably be suspected of causing damage. Insulating …

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What it means

Inspect electrical protective equipment as required and follow the applicable testing, storage and care provisions.

Application to solar panel cleaners — ISCA interpretation

This does not mean every cleaner must wear insulating gloves. It means equipment selected for electrical protection must satisfy the relevant requirements and remain fit for use.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: Hand hazards requiring protection

Official wording — exact excerpt

Selection. Employers shall base the selection of the appropriate hand protection on an evaluation of the performance characteristics of the hand protection relative to the …

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What it means

Choose gloves for the actual task, exposure and duration.

Application to solar panel cleaners — ISCA interpretation

Chemical resistance, cuts from damaged modules, heat and electrical protection require different considerations. A glove suitable for handling frames may be unsuitable for a cleaning chemical or an electrical hazard.

Employer action: Document the selection and ensure workers can use the equipment correctly.

Applies when: Noise exposure reaching the applicable triggers

Official wording — exact excerpt

The employer shall administer a continuing, effective hearing conservation program, as described in paragraphs (c) through (o) of this section, whenever employee noise exposures equal …

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What it means

Measure or assess exposure from pumps, generators, compressors and nearby plant.

Application to solar panel cleaners — ISCA interpretation

An 8-hour time-weighted average of 85 dBA triggers the hearing conservation program; permissible exposure and engineering or administrative controls are addressed separately in (a) and (b). Do not use the 85 dBA action level as a universal exposure limit.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Covered employee workplaces

Official wording — exact excerpt

Potable water shall be provided in all places of employment, for drinking, washing of the person, cooking, washing of foods, washing of cooking or eating …

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What it means

Provide potable drinking water and applicable sanitation facilities.

Application to solar panel cleaners — ISCA interpretation

Hot roofs and remote arrays need arrangements that employees can actually use. Handwashing and sanitation also matter when handling contamination or chemicals; cleaning-system water is not automatically drinking water.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Where nearby medical care is not available as described

Official wording — exact excerpt

a person or persons shall be adequately trained to render first aid. Adequate first aid supplies shall be readily available.

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What it means

Where an infirmary, clinic or hospital is not in near proximity and used for treatment, adequately trained first-aid personnel must be available and first-aid supplies readily available.

Application to solar panel cleaners — ISCA interpretation

Paragraph (c) requires suitable quick drenching or flushing facilities for corrosive exposure. Plan for roof access, remote response and chemical splash; OSHA does not prescribe the same kit contents for every cleaner.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Exposure to substances covered by the exposure tables

Official wording — exact excerpt

Other substances—8-hour Time Weighted Averages. An employee's exposure to any substance in Table Z-1, the exposure limit of which is not preceded by a "C", …

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What it means

Assess airborne dusts, mists or chemicals against the applicable limits and provisions.

Application to solar panel cleaners — ISCA interpretation

Bird contamination also requires biological hazard assessment, but these tables do not create a universal numerical exposure limit for every bird-related pathogen. Determine the substance and exposure before choosing controls.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Silica exposure within this standard's scope

Official wording — complete subsection

This section applies to all occupational exposures to respirable crystalline silica, except:

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What it means

Dry disturbance of soil or deposits can create exposure, depending on composition and work method.

Application to solar panel cleaners — ISCA interpretation

The standard has scope exclusions and an exposure-based framework; not every dusty array automatically triggers all its requirements. Assess exposure and review (c), (d), (f), (g) and (j) where applicable.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Asbestos exposure in general industry work

Official wording — exact excerpt

This section applies to all occupational exposures to asbestos in all industries covered by the Occupational Safety and Health Act, except as provided in paragraph …

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What it means

Legacy asbestos-containing roofs or associated materials need specific assessment before work can disturb them.

Application to solar panel cleaners — ISCA interpretation

Cleaning connected with construction or asbestos work may instead invoke 1926.1101. Avoid disturbing suspect material and arrange competent evaluation; ordinary solar cleaning is not an asbestos-removal authorization.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Reasonably anticipated exposure to human blood or defined infectious material

Official wording — complete subsection

Scope and Application. This section applies to all occupational exposure to blood or other potentially infectious materials as defined by paragraph (b) of this section.

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What it means

This standard is not automatically triggered by bird droppings.

Application to solar panel cleaners — ISCA interpretation

It becomes relevant where duties create occupational exposure to human blood or other material defined by the standard, potentially including designated first-aid duties. Evaluate the role and exposure rather than treating all biological contamination as bloodborne exposure.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Records covered by this standard

Official wording — complete subsection

Employee exposure record means a record containing any of the following kinds of information:

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What it means

Where covered exposure or medical records exist, the preservation and employee-access duties in (d) and (e) apply.

Application to solar panel cleaners — ISCA interpretation

This can matter for chemical, dust or other harmful-agent exposure. Do not apply one retention period indiscriminately to every training or incident record.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Recognized serious hazards without a governing specific standard

Official wording — exact excerpt

which are free from recognized hazards that are causing or are likely to cause death or serious physical harm to his employees;

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What it means

Employers must address recognized hazards capable of causing death or serious physical harm.

Application to solar panel cleaners — ISCA interpretation

OSHA identifies hazardous heat as a General Duty Clause concern. ISCA application: assess hot roofs, solar exposure, workload, acclimatization, lightning, wind and serious handling hazards; choose feasible controls. For floating arrays, assess drowning and rescue. This clause is not a substitute for a specific standard that already governs the hazard. The federal heat rule is described as proposed on OSHA’s rulemaking page reviewed for this guide; do not present its proposed temperature thresholds as an effective federal standard.

Employer action: Assess exposure and put the required prevention and response arrangements in place.

Applies when: Hazardous chemicals in the workplace

Official wording — exact excerpt

Employers shall provide employees with effective information and training on hazardous chemicals in their work area at the time of their initial assignment, and whenever …

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What it means

Train employees about applicable hazardous chemicals at initial assignment and when new hazards are introduced.

Application to solar panel cleaners — ISCA interpretation

Related provisions cover the written program, labels and safety data sheets. Chemical cleaning, coatings and descaling products must be assessed; manufacturer claims such as eco-friendly do not establish exemption.

Employer action: Check the product, equipment and handling arrangement against the full provision.

Applies when: Storage and handling of covered flammable liquids

Official wording — exact excerpt

General. Only approved containers and portable tanks shall be used. Metal containers and portable tanks meeting the requirements of and containing products authorized by chapter …

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What it means

Fuel and solvent arrangements must meet the applicable container, storage and handling requirements.

Application to solar panel cleaners — ISCA interpretation

Check classification, quantities and storage location before selecting requirements. Avoid ignition sources and maintain the required arrangements around generators, vehicles and stored products.

Employer action: Check the product, equipment and handling arrangement against the full provision.

Applies when: When cylinders are used or stored

Official wording — exact excerpt

Compressed gases. The in-plant handling, storage, and utilization of all compressed gases in cylinders, portable tanks, rail tankcars, or motor vehicle cargo tanks shall be …

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What it means

Secure, handle and store cylinders according to the applicable requirements and incorporated standards.

Application to solar panel cleaners — ISCA interpretation

This may matter for workshop equipment or gas-powered systems. A cylinder in a service vehicle requires appropriate restraint and handling, not loose placement among cleaning tools.

Employer action: Check the product, equipment and handling arrangement against the full provision.

Applies when: When LPG systems are used

Official wording — complete subsection

Containers, and first stage regulating equipment if used, shall be located outside of buildings, except under one or more of the following:

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What it means

LPG-fueled cleaning equipment brings storage, equipment and handling requirements into scope.

Application to solar panel cleaners — ISCA interpretation

Verify approved equipment, cylinder location and the applicable ventilation and operating rules. This entry is conditional; it is not a requirement for a crew using only water-fed poles.

Employer action: Check the product, equipment and handling arrangement against the full provision.

Applies when: Accessible hazardous moving parts

Official wording — exact excerpt

Types of guarding. One or more methods of machine guarding shall be provided to protect the operator and other employees in the machine area from …

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What it means

Assess rotating brushes, rollers, tracks, belts and pinch points.

Application to solar panel cleaners — ISCA interpretation

Guards must protect operators and others from the hazards identified by the standard. Remote control does not remove the need to protect someone recovering, loading or clearing a robot.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Exposed covered shafts and transmission components

Official wording — exact excerpt

All exposed parts of horizontal shafting seven (7) feet or less from floor or working platform, excepting runways used exclusively for oiling, or running adjustments, …

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What it means

Cleaning rigs may have exposed shafts, belts, pulleys or couplings.

Application to solar panel cleaners — ISCA interpretation

Apply the relevant guarding provisions to the component and configuration. Inspect guards after maintenance and prevent hoses, clothing or fingers entering moving transmission parts.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Servicing with hazardous unexpected startup or stored energy

Official wording — exact excerpt

This standard covers the servicing and maintenance of machines and equipment in which the unexpected energization or start up of the machines or equipment, or …

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What it means

This may cover clearing robot jams, servicing pumps or working on trackers when unexpected movement or stored energy can injure someone.

Application to solar panel cleaners — ISCA interpretation

Assess electrical, hydraulic, pneumatic and mechanical sources. It is not a blanket instruction to lock out every PV array for routine washing. Paragraph (a)(1)(ii) excludes certain work, including electrical hazards in utilization installations addressed by Subpart S; generation installations can invoke 1910.269(d). Stopping a robot with its remote is not necessarily energy isolation.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Tools furnished or used by employees

Official wording — exact excerpt

General requirements. Each employer shall be responsible for the safe condition of tools and equipment used by employees, including tools and equipment which may be …

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What it means

Employers are responsible for safe tool condition, including employee-owned tools.

Application to solar panel cleaners — ISCA interpretation

Inspect poles, heads, hoses and power tools for defects affecting safety. Do not continue using damaged equipment simply because it belongs to the operator.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Portable tools covered by the subsection

Official wording — exact excerpt

All portable, power-driven circular saws having a blade diameter greater than 2 in. shall be equipped with guards above and below the base plate or …

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What it means

When grinders, saws or other covered tools are used for associated work, their specific guarding provisions apply.

Application to solar panel cleaners — ISCA interpretation

This does not turn solar cleaning into permission to undertake electrical or structural repairs. Tool type determines the detailed requirement.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Compressed-air rigs with covered receivers

Official wording — exact excerpt

Every air receiver shall be equipped with an indicating pressure gage (so located as to be readily visible) and with one or more spring-loaded safety …

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What it means

Check pressure gauges, relief devices, installation and maintenance requirements for covered air receivers.

Application to solar panel cleaners — ISCA interpretation

Stored pressure is a hazard even when the motor is off. Drain and maintain the system according to the applicable rules and equipment instructions.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Stored cleaning equipment and supplies

Official wording — exact excerpt

Secure storage. Storage of material shall not create a hazard. Bags, containers, bundles, etc., stored in tiers shall be stacked, blocked, interlocked and limited in …

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What it means

Secure tanks, robots, poles and materials against sliding or collapse.

Application to solar panel cleaners — ISCA interpretation

Keep aisles and work areas clear under the related provisions. Check vehicle transport requirements separately; this storage paragraph does not replace road-transport rules.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Powered industrial trucks within scope

Official wording — exact excerpt

The employer shall ensure that each powered industrial truck operator is competent to operate a powered industrial truck safely, as demonstrated by the successful completion …

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What it means

Forklifts used to unload robots or supplies need compliant operator training and evaluation.

Application to solar panel cleaners — ISCA interpretation

Related provisions address truck suitability, operation and inspection. A driving licence is not a substitute for the required truck-specific competence.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Lifting equipment with slings

Official wording — complete subsection

Slings that are damaged or defective shall not be used.

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What it means

Inspect and use rated slings and attachments according to the applicable requirements.

Application to solar panel cleaners — ISCA interpretation

A robot's transport handle or tether is not automatically a lifting point. Determine equipment weight, approved attachment points and a safe lifting arrangement.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: When an overhead or gantry crane is used

Official wording — complete subsection

The employer shall require that the operator avoid carrying loads over people.

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What it means

Covered crane operations, inspections and load handling provisions apply when lifting cleaning equipment.

Application to solar panel cleaners — ISCA interpretation

Keep people out from under suspended loads and coordinate with the trained operator. This is equipment-specific, not a general requirement to hire a crane.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Covered crawler, locomotive or truck cranes

Official wording — complete subsection

The operator should avoid carrying loads over people.

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What it means

For general industry crane use, apply the correct load-handling, inspection and operational provisions.

Application to solar panel cleaners — ISCA interpretation

Construction crane work follows the applicable Part 1926 requirements. Plan roof deliveries and ground stability with the responsible lifting personnel.

Employer action: Inspect the equipment and control the relevant energy or mechanical hazard.

Applies when: Applicable workplace exit routes

Official wording — exact excerpt

Exit routes must be free and unobstructed. No materials or equipment may be placed, either permanently or temporarily, within the exit route. The exit access …

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What it means

Hoses, trolleys and stored robots must not block required exits.

Application to solar panel cleaners — ISCA interpretation

Internal access routes through plant rooms and stairwells must remain usable. Coordinate work with the host so temporary cleaning arrangements do not undermine evacuation.

Employer action: Agree responsibilities and ensure every crew member knows the applicable procedure.

Applies when: Facilities and routes covered by this standard

Official wording — exact excerpt

Two exit routes. At least two exit routes must be available in a workplace to permit prompt evacuation of employees and other building occupants during …

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What it means

Review the applicable exit-route design requirements, including the conditions permitting a single route.

Application to solar panel cleaners — ISCA interpretation

This does not automatically require two ladders for every rooftop. Apply the standard to the actual workplace and its building exits.

Employer action: Agree responsibilities and ensure every crew member knows the applicable procedure.

Applies when: When another applicable OSHA standard requires an EAP

Official wording — exact excerpt

Application. An employer must have an emergency action plan whenever an OSHA standard in this part requires one. The requirements in this section apply to …

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What it means

This section does not independently require a written EAP for every cleaning business.

Application to solar panel cleaners — ISCA interpretation

When triggered, it governs plan content, reporting, evacuation and employee instruction. Employers with 10 or fewer employees may communicate the plan orally. Independently, roof and remote-site work should have practical emergency arrangements.

Employer action: Agree responsibilities and ensure every crew member knows the applicable procedure.

Applies when: When an applicable OSHA standard requires one

Official wording — exact excerpt

Application. An employer must have a fire prevention plan when an OSHA standard in this part requires one. The requirements in this section apply to …

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What it means

Where triggered, the plan addresses fire hazards, ignition sources, fuel control and responsibilities.

Application to solar panel cleaners — ISCA interpretation

Do not claim this paragraph requires a separate written plan for every cleaning crew. Check the employer's actual operations and the applicable trigger.

Employer action: Agree responsibilities and ensure every crew member knows the applicable procedure.

Applies when: Extinguishers provided for employee use

Official wording — exact excerpt

Where the employer has provided portable fire extinguishers for employee use in the workplace, the employer shall also provide an educational program to familiarize employees …

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What it means

Employees need education when extinguishers are provided for their use; designated users have additional training provisions.

Application to solar panel cleaners — ISCA interpretation

Inspection, maintenance and evacuation-policy exceptions also matter. A cleaner should not approach an energized PV fire merely because an extinguisher is available.

Employer action: Agree responsibilities and ensure every crew member knows the applicable procedure.

Applies when: Alarm systems required by an applicable standard

Official wording — exact excerpt

The employee alarm system shall provide warning for necessary emergency action as called for in the emergency action plan, or for reaction time for safe …

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What it means

Where covered, alarms must provide necessary warning for safe action or escape.

Application to solar panel cleaners — ISCA interpretation

Ensure cleaners know the host's alarm signals and can receive warnings while on roofs or in remote rows. This is not a universal requirement to install an alarm at every array.

Employer action: Agree responsibilities and ensure every crew member knows the applicable procedure.

Applies when: Applicable accident-prevention signs and tags

Official wording — complete subsection

All employees shall be instructed that danger signs indicate immediate danger and that special precautions are necessary.

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What it means

Use suitable signs and tags for hazards and coordinate them with physical controls.

Application to solar panel cleaners — ISCA interpretation

Electrical defects, slippery access and exclusion zones may need clear communication. Signs do not replace required guarding, isolation or fall protection.

Employer action: Determine whether this activity is within scope before starting it.

Applies when: General industry workplaces containing confined spaces

Official wording — exact excerpt

The employer shall evaluate the workplace to determine if any spaces are permit-required confined spaces. Note: Proper application of the decision flow chart in appendix …

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What it means

Evaluate whether tanks, pits, vaults or other spaces meet the definitions and permit-space criteria.

Application to solar panel cleaners — ISCA interpretation

An ordinary open roof is not automatically a confined space. Do not enter an electrical vault or enclosed space to retrieve equipment without the appropriate determination and entry arrangements.

Employer action: Determine whether this activity is within scope before starting it.

Applies when: Operations within the standard's listed scope

Official wording — exact excerpt

Scope. This section covers the following operations, unless the employer can demonstrate that the operation does not involve employee exposure or the reasonable possibility for …

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What it means

Routine panel cleaning or ordinary bird-dropping removal is not automatically HAZWOPER work.

Application to solar panel cleaners — ISCA interpretation

Certain hazardous-waste operations and emergency responses can trigger this standard. Determine the operation and exposure before claiming workers need a 24-hour or 40-hour course.

Employer action: Determine whether this activity is within scope before starting it.

Applies when: Cleaning classified as construction

Official wording — exact excerpt

Such programs shall provide for frequent and regular inspections of the job sites, materials, and equipment to be made by competent persons designated by the …

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What it means

Competent persons must conduct the inspections specified by the employer's accident-prevention program.

Application to solar panel cleaners — ISCA interpretation

Cleaning subcontractors need arrangements for their equipment, work areas and hazards; a host's inspection does not automatically discharge every employer duty.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction employees

Official wording — exact excerpt

The employer shall instruct each employee in the recognition and avoidance of unsafe conditions and the regulations applicable to his work environment to control or …

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What it means

Teach workers how to recognize and avoid unsafe conditions and the regulations applicable to their work.

Application to solar panel cleaners — ISCA interpretation

Instruction should address the actual array, access, electrical hazards, cleaning method and coordination with other trades.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction work without nearby medical facilities as described

Official wording — exact excerpt

In the absence of an infirmary, clinic, hospital, or physician, that is reasonably accessible in terms of time and distance to the worksite, which is …

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What it means

Provide a person with a valid first-aid certificate when the specified nearby treatment facilities are unavailable.

Application to solar panel cleaners — ISCA interpretation

Related provisions address supplies, emergency transport, communication and corrosive-exposure flushing. Plan how rescuers will reach workers on the roof or inside a remote array.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction workplaces

Official wording — complete subsection

An adequate supply of potable water shall be provided in all places of employment.

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What it means

Provide an adequate supply of potable water and comply with applicable sanitation requirements.

Application to solar panel cleaners — ISCA interpretation

Arrange drinking water separately from cleaning water and make facilities practical for mobile crews.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction hazards requiring protection

Official wording — exact excerpt

Application. Protective equipment, including personal protective equipment for eyes, face, head, and extremities, protective clothing, respiratory devices, and protective shields and barriers, shall be provided, …

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What it means

Provide, use and maintain appropriate protective equipment for the hazards covered.

Application to solar panel cleaners — ISCA interpretation

Fit requirements and related payment provisions also apply. Select equipment for the task, rather than relying on a standard kit for every solar site.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Danger of drowning in construction work

Official wording — complete subsection

Employees working over or near water, where the danger of drowning exists, shall be provided with U.S. Coast Guard-approved life jacket or buoyant work vests.

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What it means

Floating PV work can trigger life-jacket or buoyant-work-vest requirements where drowning is a danger.

Application to solar panel cleaners — ISCA interpretation

Related provisions address inspection, ring buoys and a lifesaving skiff. This construction subsection is not automatically the controlling regulation for routine general industry floating-array cleaning; determine that work's applicable rules and control drowning hazards.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction operations

Official wording — exact excerpt

The employer shall be responsible for the development of a fire protection program to be followed throughout all phases of the construction and demolition work, …

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What it means

Maintain the applicable fire-protection program and required equipment.

Application to solar panel cleaners — ISCA interpretation

Coordinate fuel, charging and ignition hazards with the principal contractor. Solar electrical fire response requires an appropriate emergency plan, not improvisation by cleaning personnel.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Tools used in construction work

Official wording — exact excerpt

Condition of tools. All hand and power tools and similar equipment, whether furnished by the employer or the employee, shall be maintained in a safe …

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What it means

Maintain hand and power tools in safe condition.

Application to solar panel cleaners — ISCA interpretation

Related machine-guarding provisions apply to the equipment covered. Inspect cleaning rigs and associated tools before introducing them to a construction operation.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Employees who may contact an electric circuit

Official wording — exact excerpt

No employer shall permit an employee to work in such proximity to any part of an electric power circuit that the employee could contact the …

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What it means

Protect employees from contact with an electric circuit through the measures specified.

Application to solar panel cleaners — ISCA interpretation

Paragraph (a)(3) requires determining whether exposed or concealed circuits could be contacted before work. Include poles, hoses, robots, ladders and overhead lines in that determination.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Deenergized circuits under this section

Official wording — exact excerpt

Equipment and circuits. Equipment or circuits that are deenergized shall be rendered inoperative and shall have tags attached at all points where such equipment or …

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What it means

Deenergized circuits must be rendered inoperative and tagged as required.

Application to solar panel cleaners — ISCA interpretation

Coordinate with qualified personnel; turning off one PV component does not establish that all solar-generated circuits are safe to touch.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Scaffold work within scope

Official wording — exact excerpt

Each employee on a scaffold more than 10 feet (3.1 m) above a lower level shall be protected from falling to that lower level. Paragraphs …

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What it means

Scaffold fall protection is generally triggered more than 10 feet above a lower level, with system-specific requirements.

Application to solar panel cleaners — ISCA interpretation

Do not substitute the general construction 6-foot rule for every scaffold provision. Capacity, access, competent-person inspection and stability also need review.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Covered aerial lift operations

Official wording — complete subsection

Only authorized persons shall operate an aerial lift.

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What it means

Only authorized persons may operate the covered lift.

Application to solar panel cleaners — ISCA interpretation

Other provisions address protection, controls, loading and stability. Determine the lift type before applying boom-lift rules to a different elevating platform.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction fall exposure

Official wording — exact excerpt

Unprotected sides and edges. Each employee on a walking/working surface (horizontal and vertical surface) with an unprotected side or edge which is 6 feet (1.8 …

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What it means

For this subsection, unprotected sides and edges generally require protection at 6 feet or more.

Application to solar panel cleaners — ISCA interpretation

Holes, residential construction, roofs and other situations have separate provisions. Solar panel cleaning is not automatically roofing work eligible for roofing-specific alternatives.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Personal fall arrest in construction

Official wording — complete subsection

The employer shall provide for prompt rescue of employees in the event of a fall or shall assure that employees are able to rescue themselves.

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What it means

Provide prompt rescue or assure self-rescue.

Application to solar panel cleaners — ISCA interpretation

The rest of (d) addresses system criteria, including anchors and performance. Establish a workable retrieval method before exposing a cleaner to a fall that could leave them suspended.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Employees exposed to fall hazards

Official wording — exact excerpt

The employer shall provide a training program for each employee who might be exposed to fall hazards. The program shall enable each employee to recognize …

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What it means

Train employees to recognize fall hazards and follow protective procedures.

Application to solar panel cleaners — ISCA interpretation

Certification and retraining provisions appear in (b) and (c). Use the systems and hazards actually present on the job.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction equipment within scope

Official wording — exact excerpt

All equipment covered by this subpart shall comply with the following requirements when working or being moved in the vicinity of power lines or energized …

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What it means

Apply the paragraph's voltage-based clearances and related conditions to covered equipment.

Application to solar panel cleaners — ISCA interpretation

Cranes have more specific requirements in Subpart CC, including 1926.1408. Do not assume one distance or one spotter arrangement fits every machine and voltage.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Portable ladders providing upper-landing access

Official wording — exact excerpt

When portable ladders are used for access to an upper landing surface, the ladder side rails shall extend at least 3 feet (.9 m) above …

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What it means

The rule addresses side-rail extension above the landing and the stated alternative when extension is not possible.

Application to solar panel cleaners — ISCA interpretation

Other provisions cover positioning, condition and use. Avoid climbing while handling equipment that prevents safe balance and grip.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Employees using ladders and stairways

Official wording — exact excerpt

The employer shall provide a training program for each employee using ladders and stairways, as necessary. The program shall enable each employee to recognize hazards …

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What it means

Provide training addressing hazards and safe use by a competent person.

Application to solar panel cleaners — ISCA interpretation

Retraining is required when necessary. Match the instruction to actual roof access and equipment handling.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction crane operations within scope

Official wording — complete subsection

Hazard assessments and precautions inside the work zone. Before beginning equipment operations, the employer must:

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What it means

Determine power-line proximity and implement the required prevention option and controls.

Application to solar panel cleaners — ISCA interpretation

This section includes voltage-dependent requirements and specific procedures. A robot delivery lift must account for the load, boom, rigging and possible movement, not just the crane chassis.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Covered crane operations

Official wording — complete subsection

The employer must comply with all manufacturer procedures applicable to the operational functions of equipment, including its use with attachments.

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What it means

Follow applicable manufacturer procedures and the regulation's operating requirements.

Application to solar panel cleaners — ISCA interpretation

Confirm lifting configuration, load capacity and operator arrangements when delivering heavy cleaning machines to roofs.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction workplaces with possible confined spaces

Official wording — exact excerpt

Before it begins work at a worksite, each employer must ensure that a competent person identifies all confined spaces in which one or more of …

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What it means

A competent person must identify confined spaces and permit spaces before work begins.

Application to solar panel cleaners — ISCA interpretation

Coordinate host, controlling contractor and entry-employer duties where relevant. Cleaning in a vault or enclosed pit requires more than normal panel-cleaning instructions.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Construction exposure within scope

Official wording — exact excerpt

Scope and application. This section applies to all occupational exposures to respirable crystalline silica in construction work, except where employee exposure will remain below 25 …

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What it means

Select the applicable specified-control or exposure-assessment route.

Application to solar panel cleaners — ISCA interpretation

The standard is relevant to silica-generating work and deposits where exposure meets its scope, not automatically every dusty panel. Assess the material and cleaning method.

Employer action: Include the applicable requirement in the construction work plan and crew instruction.

Applies when: Employers within Part 1904

Official wording — exact excerpt

If your company had 10 or fewer employees at all times during the last calendar year, you do not need to keep OSHA injury and …

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What it means

The exemption depends on whether the company had 10 or fewer employees at all times during the previous calendar year, subject to the stated conditions.

Application to solar panel cleaners — ISCA interpretation

It does not remove severe-event reporting duties or safety standards. Count at the company level, not just the cleaning crew.

Employer action: Assign responsibility and maintain the records or reporting arrangements that apply.

Applies when: Industries on the exemption list

Official wording — exact excerpt

If your business establishment is classified in a specific industry group listed in appendix A to this subpart, you do not need to keep OSHA …

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What it means

Assess the employer's actual industry classification against the current list.

Application to solar panel cleaners — ISCA interpretation

Do not assume a solar cleaning company is exempt because its work sounds like ordinary cleaning. Severe-event reporting remains relevant even where routine records are exempt.

Employer action: Assign responsibility and maintain the records or reporting arrangements that apply.

Applies when: Employers required to keep OSHA records

Official wording — exact excerpt

Basic requirement. You must consider an injury or illness to meet the general recording criteria, and therefore to be recordable, if it results in any …

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What it means

Record work-related cases meeting the criteria, such as death, days away, restricted work, loss of consciousness or qualifying medical treatment.

Application to solar panel cleaners — ISCA interpretation

First aid has a specific definition in this regulation. Work-related electric shock, heat illness or falls require appropriate evaluation.

Employer action: Assign responsibility and maintain the records or reporting arrangements that apply.

Applies when: Covered employers and workers

Official wording — exact excerpt

You must establish a reasonable procedure for employees to report work-related injuries and illnesses promptly and accurately. A procedure is not reasonable if it would …

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What it means

Establish a reasonable procedure for employees to report work-related injuries and illnesses without discouraging reporting.

Application to solar panel cleaners — ISCA interpretation

Related provisions address informing employees and retaliation. A cleaner must be able to report a shock or injury without pressure to conceal it.

Employer action: Assign responsibility and maintain the records or reporting arrangements that apply.

Applies when: Employers subject to reporting requirements

Official wording — exact excerpt

Within eight (8) hours after the death of any employee as a result of a work-related incident, you must report the fatality to the Occupational …

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What it means

Report a work-related fatality within 8 hours and a work-related inpatient hospitalization, amputation or loss of an eye within 24 hours, subject to the rule's timing conditions and exceptions.

Application to solar panel cleaners — ISCA interpretation

Routine-recordkeeping exemptions do not remove these duties. Review the event-occurrence windows in (b)(6) and (b)(7).

Employer action: Assign responsibility and maintain the records or reporting arrangements that apply.

Applies when: Covered employers

Official wording — exact excerpt

Each employer shall post and keep posted a notice or notices, to be furnished by the Occupational Safety and Health Administration, U.S. Department of Labor, …

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What it means

Post the required notice where employee notices are customarily posted.

Application to solar panel cleaners — ISCA interpretation

For mobile operations, check the regulation's establishment provisions instead of assuming a poster must be physically carried onto every roof.

Employer action: Assign responsibility and maintain the records or reporting arrangements that apply.

Applies when: Employers subject to California’s applicable safety orders

Official wording — exact excerpt

every employer shall establish, implement and maintain an effective Injury and Illness Prevention Program (Program).

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What it means

California requires an effective prevention program, with written-program and other provisions subject to the stated exceptions.

Application to solar panel cleaners — ISCA interpretation

For covered solar cleaning employers, include responsibility, hazard identification, correction, communication, investigation and training. Check California’s specific electrical, access, fall protection and other safety orders as well; federal citations are not the complete California compliance framework.

Employer action: Check the state’s complete applicable requirements before scheduling the work.

Applies when: Covered outdoor work in California

Official wording — exact excerpt

Shade shall be present when the temperature exceeds 80 degrees Fahrenheit.

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What it means

Outdoor heat prevention requires water, shade, rest, emergency arrangements, acclimatization, training and a written plan.

Application to solar panel cleaners — ISCA interpretation

Plan access from the array to cooling and drinking water. At 80°F or below, timely access to shade upon request still matters under (d)(2). The 95°F high-heat procedures in (e) apply to the industries listed in (a)(2), including construction; do not automatically classify all maintenance cleaning as construction or landscaping. This is a state requirement, not a federal OSHA temperature threshold.

Employer action: Check the state’s complete applicable requirements before scheduling the work.

Applies when: Anticipated wildfire smoke and PM2.5 AQI within scope, subject to exceptions

Official wording — complete subsection

The employer should reasonably anticipate that employees may be exposed to wildfire smoke.

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What it means

This subsection works together with the PM2.5 AQI trigger in (a)(1)(A), generally 151 or greater, and the listed exceptions.

Application to solar panel cleaners — ISCA interpretation

Outdoor cleaning crews may require air-quality monitoring, communication, training and exposure controls. Under the ordinary provisions, AQI 151–500 brings respirator provision for voluntary use; above 500 brings required respiratory protection. Read (f) and the exceptions before applying the thresholds.

Employer action: Check the state’s complete applicable requirements before scheduling the work.

Applies when: Employers required to have a written safety program under NRS 618.383

Official wording — exact excerpt

perform and prepare a one-time, written job hazard analysis to assess working conditions that may cause occupational exposure to heat illness.

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What it means

The approved regulation requires a written heat job hazard analysis for employers within its stated program requirement.

Application to solar panel cleaners — ISCA interpretation

Generally this includes employers with more than 10 employees. Sections 5–7 address analysis, preventive measures and training; examine job classifications, tasks, exposure duration and changed tasks. The analysis assesses conditions without credit for access to water, rest or shade. A smaller employer should not interpret the program threshold as permission to expose workers to dangerous heat. Consult Nevada OSHA’s current guidance as well as the approved text.

Employer action: Check the state’s complete applicable requirements before scheduling the work.