---
kind: "section"
citation: "30 C.F.R. § 60.10"
title: "30"
number: "60.10"
heading: "Permissible exposure limit (PEL)."
url: "https://uscodex.org/cfr/30/60.10"
---

# §60.10. Permissible exposure limit (PEL).


The mine operator shall ensure that no miner is exposed to an airborne concentration of respirable crystalline silica in excess of 50 µg/m 3 for a full-shift exposure, calculated as an 8-hour TWA.


## Notes

### Authority

Authority: 30 U.S.C. 811, 813(h) and 957.

### Source

Source: 89 FR 28470, Apr. 18, 2024, unless otherwise noted.