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.
- 1926.450 - Acceptability of climbing over or through guardrails on scaffolds used in construction. - 05/25/2001
- 1926.450 - Composition, span, and deflection of underslung bridge scaffold platform systems. - 04/21/2004
- 1926.450 - Evaluation of a single-person, manually propelled, mobile work platform. - 05/18/2000
- 1926.450 - Exemptions for installation of guardrails on wall (interior) side. - 12/11/2001
- 1926.450 - Ladders and Scaffolding. - 02/12/1981
- 1926.450 - Requirements applicable to the design, inspection, and testing of imported scaffolding. - 05/10/2001
- 1926.450 - Revised response regarding the storage of materials on a scaffold for more than one shift's work - 10/30/2003
- 1926.450 - Use of aerial lift or scissor lift guardrails as a work or scaffold platform. - 10/23/2002
- 1926.450(a) - Are podium ladders covered under 29 CFR 1926 Subpart X or Subpart L? - 12/10/2007
- 1926.450(a) - Requirements applicable to the design, inspection, and testing of imported scaffolding. - 05/10/2001
- 1926.450(b) - Access requirements for cantilevered work platforms; use of unstable objects is prohibited. - 07/23/2001
- 1926.450(b) - Are podium ladders covered under 29 CFR 1926 Subpart X or Subpart L? - 12/10/2007
- 1926.450(b) - Compliance requirements for the use of U-bolt-type cable clamps in horizontal lifelines. - 10/31/2003
- 1926.450(b) - Fall protection requirements for employees working from a "work bridge" in concrete construction work - 12/09/2002
- 1926.450(b) - Fall protection requirements for work docks/bridges used during bridge construction. - 02/09/2004
- 1926.450(b) - Fall protection, training, inspection and design requirements of aerial lifts and scissor lifts/scaffolds. - 02/23/2000
- 1926.450(b) - OSHA's position on deviations from the manufacturer's guidelines on scaffolds. - 08/04/1999
- 1926.450(b) - Pump jack scaffolds must be braced at their bottom. - 11/08/2000
- 1926.450(b) - Requirements for being designated a competent person under Part 1926 Subpart L (Scaffolds). - 06/17/2005
- 1926.450(b) - Scaffolds: removal of bracing; maximum loads; damaged planking; and foundations. - 11/25/1997
- 1926.450(b) - Suspended scaffold and fall protection requirements applicable to elevator construction - 12/05/2023
- 1926.450(b) - Training qualifications for the competent person inspecting scaffolds. - 05/21/1999
- 1926.450(b) - Walkways within scaffolds, guardrails, and planking. - 07/26/2005