# Standard Interpretations
1 - 1926.602(a)(9), 1926.602(a)(9)(ii) - Whether "discriminating [back-up] alarms" may be used to meet the requirements of 29 CFR 1926.602(a)(9)(ii).
2 - 1926.602(a)(9), 1926.602(a)(9)(ii) - Alternatives to common back-up alarms on construction motor vehicles; use of other effective technology or observers/signal persons.
3 - 1926.602(a)(9) - Requirements for back-up alarms on construction vehicles.
4 - 1926.602(a)(9) - Noise and potential hazard of backup alarms on equipment at construction sites.
5 - 1926.602(a)(9) - Use of an electronic back-up mirror used with a with a reverse audible alarm.
# Regulations
1 - - Material handling equipment.