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.
- 1926.454 - A letter of determination of the new scaffold mandate. - 08/05/1997
- 1926.454 - Acceptability of climbing over or through guardrails on scaffolds used in construction. - 05/25/2001
- 1926.454 - Applicable standards to lifting personnel on a platform supported by a rough-terrain forklift. - 11/27/2001
- 1926.454 - Evaluation of a single-person, manually propelled, mobile work platform. - 05/18/2000
- 1926.454 - Exemptions for installation of guardrails on wall (interior) side. - 12/11/2001
- 1926.454 - Requirements applicable to the design, inspection, and testing of imported scaffolding. - 05/10/2001
- 1926.454 - Revised response regarding the storage of materials on a scaffold for more than one shift's work - 10/30/2003
- 1926.454 - Training qualifications for the competent person inspecting scaffolds. - 05/21/1999
- 1926.454(a) - Revised response regarding the storage of materials on a scaffold for more than one shift's work - 10/30/2003
- 1926.454(c) - Fall protection, training, inspection and design requirements of aerial lifts and scissor lifts/scaffolds. - 02/23/2000