---
kind: "section"
citation: "30 C.F.R. § 75.201"
title: "30"
number: "75.201"
heading: "Definitions."
url: "https://uscodex.org/cfr/30/75.201"
---

# §75.201. Definitions.


Automated temporary roof support (ATRS) system. A device to provide temporary roof support from a location where the equipment operator is protected from roof falls.

Pillar recovery. Any reduction in pillar size during retreat mining.


## Notes

### Source

Source: 53 FR 2375, Jan. 27, 1988, unless otherwise noted.

### Authority

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

### Source

Source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.