# Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners
> **Mine Safety and Health Administration** · Final rule. · Published 2002-02-27 · 67 FR 9180
## Document
- **Document number:** 02-4611
- **Category:** mine-safety
- **Sub-agency:** Mine Safety and Health Administration
- **Federal Register citation:** 67 FR 9180
- **CFR reference:** 30 CFR 57
- **Publication date:** 2002-02-27
## Abstract

This final rule revises two provisions of the Mine Safety and Health Administration's (MSHA) existing rule pertaining to "Diesel Particulate Matter Exposure of Underground Metal and Nonmetal Miners," published in the Federal Register on January 19, 2001 (66 FR 5706, RIN 1219-AB11). The two provisions are the evidence and tagging provisions of the Maintenance standard and the definition of introduced in the Engine standard. The revisions clarify the existing rule.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/02/27/02-4611/diesel-particulate-matter-exposure-of-underground-metal-and-nonmetal-miners)
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