Reference

The signal word on a safety sign encodes how certain the harm is, not how bad it would be. This guide defines all four ANSI Z535 signal words with their exact panel colors, shows where OSHA's three sign classes leave a gap at WARNING, and gives a clear two-question test for assigning the right header to any hazard you find.

OSHA sets safety sign rules in two separate places, and the ANSI editions it incorporates run two to three revisions behind what vendors sell as current. This guide decodes the three sign classes at 1910.145(c), the specified colors, accident prevention tags, and the construction table at 1926.200, plus exit and aisle marking duties.

A fire blanket cannot satisfy an OSHA extinguisher requirement - 29 CFR 1910.157 governs portable fire extinguishers and does not mention blankets at all, and a blanket carries no class or capacity rating. This guide covers the rating gap, the two jobs a blanket genuinely does better, and where it is the wrong tool entirely.

A charged fire extinguisher is a pressure vessel and does not belong in a bin. There is no single federal disposal rule - household waste is excluded from RCRA Subtitle C and handed to state and local authorities instead. This guide covers rechargeable vs disposable, safe depressurising, and the extra duty a workplace owes.

Scaffolds have their own OSHA subpart, their own fall-protection height and their own inspection rule, and the numbers differ from the ones crews recite. This reference explains 29 CFR 1926 Subpart L with paragraph citations: the 4x capacity factor, the 10-foot trigger, the 4:1 tipping ratio, planking gaps and guardrail height.

There is no federal chemical-segregation matrix, which is why so much guidance on this topic is subtly wrong. This guide covers the one explicit rule in 1910.106(d)(7)(iv), the cabinet quantities at (d)(3)(i), the pairs that cause most facility incidents, and an eight-step segregation walk that produces findings rather than reassurance.

OSHA 1910.1200(e) requires a written hazard communication program at each workplace - not just a binder of safety data sheets. This guide covers the three mandatory contents, the chemical list rule that trips most programs, and the training obligation in paragraph (h). Includes a seven-step method for building the chemical list.

Every safety data sheet in the US carries the same 16 sections in the same order under OSHA 29 CFR 1910.1200 - so an SDS is a map, not a document you read front to back. This guide shows which sections carry regulatory weight and which four OSHA does not enforce. Covers Section 2 hazards, Section 8 PPE, first aid and a worked example.

HazCom and HAZWOPER are separate standards with separate triggers, and conflating them is expensive in both directions. This guide sets out the five operations covered by 1910.120(a)(1), how paragraph (a)(2) limits which parts apply, and where the incidental-release line falls for an ordinary facility responding to a spill.

Inspection-first parts reference for the 3M Ultimate FX FF-401, FF-402 and FF-403, verified against 3M's current user instructions. Maps every inspection finding to its part number, covers the valve stack, harness, lens and nose cup procedures, the dual-airline valve rule, and Amazon listings checked against exact 3M numbers.

A workplace first aid kit is stocked for frequent survivable injuries; a bleeding control kit exists for one rare event that kills in minutes. This reference compares the two layers, sets out what ANSI/ISEA Z308.1-2021 requires versus only recommends, and explains the arterial tourniquet specification most buyers get wrong.

Fall restraint keeps a worker from reaching the hazard; fall arrest catches a fall already in progress. This reference sets out the hierarchy, a side-by-side comparison, the anchorage rule OSHA actually enforces for restraint, how work positioning differs from both, and where restraint quietly stops being restraint on a real jobsite.