Standard Interpretations (Archive) | Occupational Safety and Health Administration

Lapse in Appropriations

For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE).  This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025.  Updates to the site will start again when the Federal government resumes operations.

Standard Interpretations(Archived) - Standard Number

1910.28 - Fall protection and aerial lifts in the Electric Power Generation, Transmission, and Distribution industries. - 02/27/2006
1910.28 - Interpretation Regarding Guardrails Proposed for Coors Stadium. - 03/08/1995
1910.28 - Safe tieback angles for controlled boatswain's chairs. - 04/19/2006
1910.28 - Standard applicable to two point suspension scaffolds and power platforms used in window cleaning and to hazards in refrigeration plants. - 07/16/1985
1910.28 - Testing requirements for the power units or manually operated winches of single-point adjustable suspension scaffolds. - 09/05/1986
1910.28 - The rung spacing between horizontal members of the end frames of metal scaffolds used as ladders rungs for access or egress. - 05/17/1990
1910.28 - Use of horizontal members of the end frames of metal scaffolds as safe access. - 01/09/1990
1910.28 - Width of Scaffold Platforms. - 07/01/1974

NOTICE: This is an OSHA Archive Document, and no longer represents OSHA Policy. It is presented here as historical content, for research and review purposes only. Return to current Interpretations.