Title 30

PART 57 SUBPART B

Subpart B - Ground Control Authority:30 U.S.C. 811. Source:51 FR 36198, Oct. 8, 1986, unless otherwise noted.

• Authority: 30 U.S.C. 811.
• Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.

30:1.0.1.8.30.2.142	SUBJGRP 142	Scaling and Support - Surface and Underground
30:1.0.1.8.30.2.142.1	SECTION 57.3000	57.3000 Definitions.
30:1.0.1.8.30.2.142.2	SECTION 57.3200	57.3200 Correction of hazardous conditions.
30:1.0.1.8.30.2.142.3	SECTION 57.3201	57.3201 Location for performing scaling.
30:1.0.1.8.30.2.142.4	SECTION 57.3202	57.3202 Scaling tools.
30:1.0.1.8.30.2.142.5	SECTION 57.3203	57.3203 Rock fixtures.
30:1.0.1.8.30.2.143	SUBJGRP 143	Scaling and Support - Underground Only
30:1.0.1.8.30.2.143.6	SECTION 57.3360	57.3360 Ground support use.
30:1.0.1.8.30.2.144	SUBJGRP 144	Precautions - Surface and Underground
30:1.0.1.8.30.2.144.7	SECTION 57.3400	57.3400 Secondary breakage.
30:1.0.1.8.30.2.144.8	SECTION 57.3401	57.3401 Examination of ground conditions.
30:1.0.1.8.30.2.145	SUBJGRP 145	Precautions - Surface Only
30:1.0.1.8.30.2.145.9	SECTION 57.3430	57.3430 Activity between machinery or equipment and the highwall or bank.
30:1.0.1.8.30.2.146	SUBJGRP 146	Precautions - Underground Only
30:1.0.1.8.30.2.146.10	SECTION 57.3460	57.3460 Maintenance between machinery or equipment and ribs.
30:1.0.1.8.30.2.146.11	SECTION 57.3461	57.3461 Rock bursts.

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