---
kind: "section"
citation: "30 C.F.R. § 72.800"
title: "30"
number: "72.800"
heading: "Single, full-shift measurement of respirable coal mine dust."
url: "https://uscodex.org/cfr/30/72.800"
---

# §72.800. Single, full-shift measurement of respirable coal mine dust.


The Secretary will use a single, full-shift measurement of respirable coal mine dust to determine the average concentration on a shift since that measurement accurately represents atmospheric conditions to which a miner is exposed during such shift. As of April 14, 2025, noncompliance with the respirable dust standard, in accordance with this subchapter, is demonstrated when a single, full-shift measurement taken by MSHA meets or exceeds the applicable ECV in table 1 to [§ 70.208](/cfr/30/70.208.md), table 1 to [§ 70.209](/cfr/30/70.209.md), table 1 to [§ 71.206](/cfr/30/71.206.md), or table 1 to [§ 90.207](/cfr/30/90.207.md) of this chapter that corresponds to the particular sampling device used. Upon issuance of a citation for a violation of the standard, and for MSHA to terminate the citation, the mine operator shall take the specified actions in this subchapter.


## Notes

### Amendments

[89 FR 28479, Apr. 18, 2024]

### Authority

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

### Source

Source: 59 FR 8327, Feb. 18, 1994, unless otherwise noted.

### Amendments

[89 FR 28479, Apr. 18, 2024]