Workplace and biological exposure limits

Source: OSHA PELs (29 CFR 1910.1000) + NIOSH RELs (libre publico) · OSHA (DOL) + NIOSH (CDC) + state OSHA plans (22 estados + 5 territorios) · 2026

Last revised: 2026-06-06

For guidance only; does not replace clinical judgement or the individual assessment of the worker.