Standard Interpretations
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.
- 1926.251 - Cage, skip and load connections to hoist ropes. - 08/19/1992
- 1926.251 - Clarification on rigging for hoisting multiple bundles of construction materials - 05/06/2019
- 1926.251 - Marking and proof-testing requirements for special custom-designed lifting accessories. - 07/07/2003
- 1926.251 - OSHA Requirements Addressing Fall Protection Equipment - 12/02/1991
- 1926.251 - Padded slings/wire rope during steel erection. - 03/31/2010
- 1926.251 - Proof testing of lifting beams used to lift wind turbine components. - 06/08/2012
- 1926.251 - Rigging equipment for material handling. - 01/19/1993
- 1926.251 - Testing requirements for "lifting blinds" or "lifting covers" on pressure vessels. - 03/01/2010
- 1926.251 - Use of synthetic fiber slings. - 02/10/1994
- 1926.251 - Wire rope were used as a bull wire - 08/20/1976
- 1926.251(a) - Marking and proof-testing requirements for special custom-designed lifting accessories. - 07/07/2003
- 1926.251(a)(1) - OSHA requirements applicable to use of the Contex "Magic Arm" below-the-hook lifting device. - 01/25/2006
- 1926.251(a)(2) - Alloy steel chain slings must not be loaded beyond working load limit. - 08/04/2000
- 1926.251(a)(4) - Marking and proof-testing requirements for special custom-designed lifting accessories. - 07/07/2003
- 1926.251(a)(4) - Proof testing of lifting beams used to lift wind turbine components. - 06/08/2012
- 1926.251(a)(4) - Requirements for load-testing and marking of special custom-design rigging accessories; applicability of ASME standards. - 02/09/2004
- 1926.251(a)(4) - Rigging equipment for material handling; custom-designed accessories. - 08/15/2002
- 1926.251(a)(4) - Testing requirements for "lifting blinds" or "lifting covers" on pressure vessels. - 03/01/2010
- 1926.251(a)(5) - Testing requirements for "lifting blinds" or "lifting covers" on pressure vessels. - 03/01/2010
- 1926.251(b)(4) - Alloy steel chain slings must not be loaded beyond working load limit. - 08/04/2000
- 1926.251(c) - Requirements for wire rope fittings (CASTLOK Bend-Master) in construction. - 10/05/1977
- 1926.251(c)(3) - A knot in a wire rope is a recognized hazard for material handling. - 12/14/1977
- 1926.251(c)(4)(iii) - Clarification on standard for rigging equipment for material handling - wire rope. - 03/07/1975
- 1926.251(c)(9) - Padded slings/wire rope during steel erection. - 03/31/2010