Reference

OSHA 1910.134(d)(3)(iii)(B) requires a documented change-out schedule for OV respirators. This guide covers ESLI vs. calculated schedules, 3M Service Life Software inputs, P100 replacement rules, combination OV/P100 dual service life limits, per-SKU guidance for 3M cartridges, and a 6-step worked example for solvent spray painting.

OSHA 29 CFR 1926.1153 is the construction silica standard. It sets a PEL of 50 µg/m³, allows Table 1 engineering controls as a compliance option, and requires written exposure control plans and medical surveillance when applicable. This guide covers each compliance option and respirator selection for concrete grinding and masonry work.

OSHA 29 CFR 1910.134 governs respiratory protection programs across general industry and construction. This guide covers every major section: written programs, APF selection, medical evaluations, fit testing, user seal checks, cartridge change-out, IDLH requirements, training, recordkeeping, and a step-by-step compliance example.

ANSI/ISEA Z88.2 is the consensus respiratory protection program standard, providing guidance that goes beyond OSHA 1910.134 minimums. It covers hazard identification, respirator selection, written programs, fit testing, and program evaluation. This guide explains Z88.2's structure and how it relates to 1910.134 and NIOSH 42 CFR Part 84.

OSHA 29 CFR 1926.103 is the construction respiratory protection standard. It requires all construction employers to comply with 29 CFR 1910.134 — including written programs, medical evaluations, and fit testing. This guide covers APF selection, silica and asbestos rules, common citation triggers and a worked example for concrete grinding.

NIOSH 42 CFR Part 84 governs respirator certification in the U.S., replacing the Bureau of Mines standard in 1995. It defines the N/R/P oil-resistance classification and 95/99/100 filtration tiers. This guide covers the approval process, TC number anatomy, and step-by-step Certified Equipment List verification with a worked example.

OSHA requires a respirator under 29 CFR 1910.134 when engineering controls can't keep airborne exposure below the PEL, when a substance-specific standard mandates it, or in IDLH and emergency atmospheres. This guide covers the PEL trigger, required vs voluntary use, the written program, fit testing, APF selection, and a worked example.

OSHA 29 CFR 1910.106 limits flammable storage cabinets to 60 gallons of Class I or II liquids and requires double-walled steel construction with self-closing doors. NFPA 30 governs local fire code compliance.

OSHA Ladder Requirements: OSHA regulates portable ladders in general industry under 29 CFR 1910.23 (the 2017 Walking-Working Surfaces Final Rule) and in construction under 29 CFR 1926.1053 .

OSHA 29 CFR 1910.151 requires adequate first aid supplies in every workplace without a nearby medical facility. ANSI/ISEA Z308.1-2021 defines Class A and Class B kit contents.

OSHA 29 CFR 1910.135 requires hard hats wherever falling objects or electrical hazards exist. ANSI/ISEA Z89.1 defines Type I and Type II impact classes plus Class E, G, and C electrical ratings.

OSHA Guardrail Requirements: OSHA requires guardrail systems - or an equivalent fall protection method - on any open-sided floor, platform, or runway that is 4 feet or more above a lower level in general industry (29 CFR 1910.28), or 6 feet or more above a lower level in construction (29 CFR 1926.501).