10 CFR § 850.22 - Permissible exposure limit.

---
identifier: "/us/cfr/t10/s850.22"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 850.22 - Permissible exposure limit."
title_number: 10
title_name: "Energy"
section_number: "850.22"
section_name: "Permissible exposure limit."
chapter_name: "DEPARTMENT OF ENERGY"
part_number: "850"
part_name: "CHRONIC BERYLLIUM DISEASE PREVENTION PROGRAM"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 2201(i)(3), (p); 42 U.S.C. 2282c; 29 U.S.C. 668; 42 U.S.C. 7101  50 U.S.C. 2401  E.O. 12196, 3 CFR 1981 comp., at 145 as amended."
regulatory_source: "64 FR 68905, Dec. 8, 1999, unless otherwise noted."
cfr_part: "850"
---


# 850.22 Permissible exposure limit.

The responsible employer must assure that no worker is exposed to an airborne concentration of beryllium greater than the permissible exposure limit established in 29 CFR 1910.1000, as measured in the worker's breathing zone by personal monitoring, or a more stringent TWA PEL that may be promulgated by the Occupational Safety and Health Administration as a health standard.