# Regulations
1 - 1926.601(b)(4) - Motor vehicles.
# Standard Interpretations
1 - 1926.601(b)(4) - Permissible methods of operating trucks in reverse on construction sites.
2 - 1926.601(b)(4) - Alternatives to common back-up alarms on construction motor vehicles; use of other effective technology or observers/signal persons.
3 - 1926.601(b)(4) - Equipment reverse signal alarms must be audible above surrounding noise level.
4 - 1926.601(b)(4) - Requirements for back-up alarms on construction vehicles.
5 - 1926.601(b)(4) - Noise and potential hazard of backup alarms on equipment at construction sites.
6 - 1926.601(b)(4) - Requirements for back up alarms.
7 - 1926.601(b)(4) - Regulations for back-up alarms.