---
kind: "section"
citation: "30 C.F.R. § 72.500"
title: "30"
number: "72.500"
heading: "Emission limits for permissible diesel-powered equipment."
url: "https://uscodex.org/cfr/30/72.500"
---

# §72.500. Emission limits for permissible diesel-powered equipment.

- (a) [Reserved]
- (b) Each piece of permissible diesel-powered equipment operated in an underground area of an underground coal mine must emit no more than 2.5 grams per hour of diesel particulate matter.

## Notes

### Amendments

[91 FR 38283, June 25, 2026]

### Source

Source: 66 FR 5704, Jan. 19, 2001, unless otherwise noted.

### Authority

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

### Source

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

### Amendments

[91 FR 38283, June 25, 2026]