PPE Selection and Use

PPE's Place in the Hierarchy

Personal Protective Equipment (PPE) is the last line of defense. It does not remove the hazard – it puts a barrier between the worker and a hazard that is still present. The STSC repeatedly tests that PPE is selected only after elimination, substitution, engineering, and administrative controls have been applied, and that PPE never substitutes for those higher controls. The governing standards live in 29 CFR 1926 Subpart E (1926.95–1926.107).

Who Pays – the No-Cost Rule

One of the most tested logistics facts: under 29 CFR 1926.95(d), the employer must provide required PPE at no cost to the employee. Narrow exceptions exist for items the worker may use off the job:

• Non-specialty safety-toe footwear and non-specialty prescription safety eyewear, when the employee is allowed to keep them off-site.
• Ordinary clothing, sunglasses, sunscreen, and weather gear.
• PPE the employee provides voluntarily, if the employer determines it is adequate and not a hazard.

Everything else – hard hats, fall harnesses, respirators, hearing protection, cut-resistant gloves, face shields – is on the employer's dime, including replacement when worn or damaged.

The Hazard Assessment

PPE selection is not guesswork. The employer must conduct and document a hazard assessment of the workplace, determine what hazards are present (impact, penetration, compression, chemical, heat, light radiation, noise), select PPE that matches each hazard, and train each worker on what PPE is needed, how to wear and adjust it, its limitations, and how to maintain and dispose of it. The selection must flow from the actual hazards a JHA identified, not from habit.

Head Protection (1926.100 / ANSI Z89.1)

Hard hats must meet ANSI Z89.1. Know the two classifications the exam uses:

By impact (Type):

• Type I – protects against impact to the top of the head only.
• Type II – protects against top and lateral (side) impact.

By electrical class:

A memory hook: E = Electrical (highest, 20 kV), G = General, C = Conductive (none). Near energized work, Class E is required. The critical service rule: any hard hat that has sustained an impact, penetration, or significant stress must be removed from service even if it looks undamaged – internal cracks and a stretched suspension are not visible.

Eye and Face Protection (1926.102 / ANSI Z87.1)

Eye and face protection must meet ANSI Z87.1. It is required wherever there is a reasonable probability of injury from flying particles, molten metal, chemicals, acids, or injurious light (welding). Note the layered logic: safety glasses with side shields for impact; goggles for dust/splash; a face shield is a secondary protector worn over primary eye protection, never alone. Welding requires the correct filter shade. Eye and face protection (1926.102) is consistently among OSHA's most-cited construction violations.

Hearing Protection (1926.52 / 1926.101)

Construction noise is governed by 29 CFR 1926.52. Memorize these numbers:

• PEL = 90 dBA as an 8-hour time-weighted average.
• Exchange rate = 5 dBA – for every 5-dBA increase, permissible exposure time halves (95 dBA = 4 hours, 100 dBA = 2 hours).
• When exposure exceeds the limits, feasible engineering or administrative controls must be tried first; if they fail to reduce exposure, hearing protection (1926.101) is provided, and a continuing, effective hearing conservation program is required.

Hearing protectors are rated by a Noise Reduction Rating (NRR) printed on the package. Earplugs and earmuffs are PPE – the last layer, after quieter equipment or distance.

Respiratory, Hand, and Foot Protection

• Respirators (1926.103) invoke the general-industry program 29 CFR 1910.134, requiring a written program, medical evaluation before fit testing, fit testing, and cartridge selection matched to the contaminant. Respirators are the last resort for airborne hazards behind ventilation and wet methods.
• Foot protection (1926.96) must meet ASTM F2413 (formerly ANSI Z41); safety-toe boots resist compression and impact.
• Hand protection is selected by hazard: cut-resistant for blades, chemical-resistant for solvents, voltage-rated for electrical.

Common STSC Traps

• Believing the worker pays for required PPE – they do not (employer pays, 1926.95).
• Picking Class G for energized electrical work – it must be Class E (20 kV).
• Treating a face shield as standalone eye protection – it is secondary, worn over glasses/goggles.
• Reusing a hard hat after an impact – it must be removed from service.
• Selecting PPE before trying engineering controls – PPE is always last in the hierarchy.

High-Visibility Apparel and Work-Zone PPE

Workers exposed to vehicular or equipment traffic – flaggers, road crews, anyone in a work zone – must wear high-visibility safety apparel meeting ANSI/ISEA 107. Federal-aid highway work requires at least a Class 2 garment, and Class 3 (sleeves plus more reflective area) for higher-speed roadways or night work. This is the PPE layer that backstops the engineering and administrative controls of a traffic control plan (barriers, channelizing devices, flaggers).

The STSC may pair a struck-by traffic scenario with a question about the correct hi-vis class, so connect it back to the work-zone control plan rather than treating it as standalone.

Inspection, Fit, and Maintenance

PPE only protects if it is in serviceable condition and fits. The supervisor's recurring duties:

• Inspect before each use – harnesses for cut webbing and deployed indicators, respirators for cracked seals, hard hats for cracks and a stretched suspension, gloves for holes.
• Fit matters – an oversized glove caught in a tool, a loose harness that allows a higher fall distance, or a respirator that leaks all defeat the protection.
• Replace per manufacturer schedule – many harness manufacturers set a service life, and any component subjected to a fall-arrest load must be removed from service immediately.
• Train and document – workers must be retrained when the PPE, the workplace, or the hazard changes, and when a worker shows inadequate understanding.

Tying PPE Back to the Hazard Assessment

Every PPE choice should trace to a line in the hazard assessment and, before it, to a JHA step. If the hazard assessment never mentions chemical splash, prescription goggles are not the answer; if it never mentions overhead work, a chin strap is not required. The exam rewards the candidate who selects PPE because the documented hazard demands it and who remembers that PPE is the final layer after the site has exhausted feasible elimination, substitution, engineering, and administrative controls.