Standard Interpretations - Table of Contents
• Standard Number: 1926.500; 1926.500(a)(2)(vii) ; 1926.500(b) ; 1926.501; 1926.501(b)(1); 1926.1050; 1926.1052; 1926.1053; 1926.1060

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. This 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. To keep apprised of such developments, you can consult OSHA's website at

May 21, 2003

Ms. Deborah Caldwell
5071 Butler Rd.
Caldwell Electrical Contractors
Gainesville, Georgia 30506

Re: Ladders; fall protection; working on top of equipment.

Dear Ms. Caldwell:

This is in response to your letter of November 22, 2002, in which you ask for guidance regarding OSHA's fall protection requirements for construction work. We apologize for the delay in providing this response.

We have paraphrased your question as follows:

Question: Scenario: to complete a construction project, a worker places a portable ladder on top of a piece of equipment or on the roof of a structure that is inside a large building. The top of the equipment or structure is at least 10' x 10' and at least 10' above the ground. It is stable, level, and suffic