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.
- 1910.28 - Clarification of Power Platforms for Exterior Building Maintenance. - 03/18/1982
- 1910.28 - Clarification of the phrase "when required" as used specifically in 29 CFR 1910.28. - 08/21/2007
- 1910.28 - Clarification of the words "open sides" for two-point suspension scaffolds. - 08/29/1983
- 1910.28 - Clarification of what constitutes lashing or stability for portable scaffolds. - 08/10/1976
- 1910.28 - Clarification on window cleaning operations. - 05/21/1982
- 1910.28 - Determining scaffold support capability. - 10/02/2008
- 1910.28 - Fall hazards over 25 feet. - 05/21/1992
- 1910.28 - Fall Protection on low slope roofs - 06/06/2024
- 1910.28 - Personal Fall Arrest System or Ladder Safety System on Fixed Ladders - 05/17/2019
- 1910.28 - Use of an Aluminum Pole Jack Scaffold at a 50 foot shoulder working height. - 12/30/1983
- 1910.28 - Walking-Working Surfaces and Personal Protective Equipment (Fall Protection Systems) - 06/22/2017
- 1910.28(a)(2) - Attachment requirements for window washing equipment. - 12/09/1986
- 1910.28(a)(2) - Determining scaffold support capability. - 10/02/2008
- 1910.28(a)(2)(ii) - NATE Response FINAL - 08/18/2017
- 1910.28(b)(10)(ii) - Walking-Working Surfaces and Personal Protective Equipment (Fall Protection Systems) - 06/22/2017
- 1910.28(b)(13)(i) - Fall Protection on low slope roofs - 06/06/2024
- 1910.28(b)(13)(iii) - Fall Protection on low slope roofs - 06/06/2024
- 1910.28(b)(13)(iii)(A) - Duty to have Fall Protection and Falling Object Protection While Performing Temporary and Infrequent Work on Roofs - 06/12/2020
- 1910.28(b)(9) - Fall Protection Requirements for Fixed Ladders - 09/10/2021
- 1910.28(b)(9) - Walking-Working Surfaces and Personal Protective Equipment (Fall Protection Systems) - 06/22/2017
- 1910.28(b)(9)(i)(A) - NATE Response FINAL - 08/18/2017
- 1910.28(b)(9)(i)(A) - Personal Fall Arrest System or Ladder Safety System on Fixed Ladders - 05/17/2019
- 1910.28(b)(9)(i)(B) - Fixed Ladders on Grain Storage and Handling Equipment - 02/19/2021
- 1910.28(b)(9)(i)(B) - Personal Fall Arrest System or Ladder Safety System on Fixed Ladders - 05/17/2019
- 1910.28(b)(9)(i)(B) - Personal Fall Arrest System or Ladder Safety System on Fixed Ladders, and Fixed Ladders Used on Grain Silos for Emergency Escape - 10/18/2019
- 1910.28(b)(9)(i)(C) - Personal Fall Arrest System or Ladder Safety System on Fixed Ladders - 05/17/2019
- 1910.28(b)(9)(i)(D) - Personal Fall Arrest System or Ladder Safety System on Fixed Ladders - 05/17/2019