GroundRules
30 CFR 57.14132: Horns and backup alarms for surface equipment.
Where this section sits in the code
- Title 30—Mineral Resources
- CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
- SUBCHAPTER K—METAL AND NONMETAL MINE SAFETY AND HEALTH
- PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
- Subpart M—Machinery and Equipment
(a) Manually-operated horns or other audible warning devices provided on self-propelled mobile equipment as a safety device shall be maintained in a functional condition.
(b)(1) When the operator has an obstructed view to the rear, self-propelled mobile equipment shall have—
(i) An automatic reverse-activated signal alarm;
(ii) A wheel-mounted bell alarm which sounds at least once for each three feet of reverse movement;
(iii) A discriminating backup alarm that covers the area of obstructed view; or
(iv) An observer to signal when it is safe to back up.
(2) Alarms shall be audible above the surrounding noise level.
(3) An automatic reverse-activated strobe light may be used at night in lieu of an audible reverse alarm.
(c) This standard does not apply to rail equipment.
Collected 2026-08-27T02:25:24Z. Source file · JSON