Standard Interpretations
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OSHA requirements are set by statute, standards, and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. Each letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information.
- 1926.601 - "Audible above" is a signal alarm distinguishable from the surrounding noise level. - 07/23/1979
- 1926.601 - Clarification of 1926.601 and 1926.602. - 11/18/1974
- 1926.601 - Construction standards for equipment such as Shuttle Buggy. - 05/23/2001
- 1926.601 - End dump trucks on jobsites or public highways - 10/01/1991
- 1926.601 - Horns on construction equipment. - 06/30/1981
- 1926.601 - Motor vehicle requirements for a re-paving project. - 07/03/2007
- 1926.601 - Permissible methods of operating trucks in reverse on construction sites. - 03/02/2010
- 1926.601 - Requirements for providing seatbelts for drivers whose size precludes their using seatbelts. - 02/04/2004
- 1926.601 - Seat belts for passengers in the rear of pickup trucks. - 06/07/1989
- 1926.601 - Whether 1926.601 is applicable to personnel and burden carriers used in construction. - 06/01/2006
- 1926.601(a) - Clarification of application and requirements for unobstructed view for 1926.601(a). - 12/10/1984
- 1926.601(a) - Motor vehicle requirements for a re-paving project. - 07/03/2007
- 1926.601(a) - Requirements for providing seatbelts for drivers whose size precludes their using seatbelts. - 02/04/2004
- 1926.601(b)(10) - Enforcement of 29 CFR 1926.601(b)(10). - 03/17/1978
- 1926.601(b)(11) - End dump trucks on jobsites or public highways - 10/01/1991
- 1926.601(b)(4) - Equipment reverse signal alarms must be audible above surrounding noise level. - 05/27/2004
- 1926.601(b)(4) - Noise and potential hazard of backup alarms on equipment at construction sites. - 10/29/1991
- 1926.601(b)(4) - Permissible methods of operating trucks in reverse on construction sites. - 03/02/2010
- 1926.601(b)(4) - Regulations for back-up alarms. - 07/11/1980
- 1926.601(b)(4) - Requirements for back up alarms. - 06/25/1982
- 1926.601(b)(4) - Requirements for back-up alarms on construction vehicles. - 11/03/1998
- 1926.601(b)(4)(i) - Alternatives to common back-up alarms on construction motor vehicles; use of other effective technology or observers/signal persons. - 09/27/2004
- 1926.601(b)(4)(i) - Equipment reverse signal alarms must be audible above surrounding noise level. - 05/27/2004
- 1926.601(b)(4)(i) - Reverse signal alarms for motor vehicles. - 07/12/1993
- 1926.601(b)(4)(ii) - Alternatives to common back-up alarms on construction motor vehicles; use of other effective technology or observers/signal persons. - 09/27/2004
- 1926.601(b)(4)(ii) - Equipment reverse signal alarms must be audible above surrounding noise level. - 05/27/2004
- 1926.601(b)(5) - Whether 1926.601 is applicable to personnel and burden carriers used in construction. - 06/01/2006
- 1926.601(b)(6) - Use of cab shields on haulage vehicles with 4 ft separation between cab and dump truck body. - 02/28/2001
- 1926.601(b)(8) - Response to request for permanent variance from 1926.601(b)(8). - 06/25/1975
- 1926.601(b)(8) - Whether 1926.601 is applicable to personnel and burden carriers used in construction. - 06/01/2006
- 1926.601(b)(9) - Clarification as to whether operators of mobile cranes with operator cabs are subject to seat belt requirements. - 01/27/2004
- 1926.601(b)(9) - Passenger seat belts not required on school buses - 01/19/1994
- 1926.601(b)(9) - Requirements for providing seatbelts for drivers whose size precludes their using seatbelts. - 02/04/2004