Clarification concerning fall protection and vertical walled trenches with depth of 6 feet or greater and use of controlled access zones.

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 https://www.osha.gov.

June 24, 2002 [Revised 12/5/2012]

Ned McDougald
4170 W. Menlo
Fresno, CA 93722

Dear Mr. McDougald:

This is in response to your letter of April 22, 2002, requesting an interpretation of fall protection requirements when working around trenches. Specifically, you ask if fall protection is required around vertical walled trenches that have a depth 6 feet or greater; if there are any exceptions to fall protection around trenches implied or stated; and whether a controlled access zone be used in lieu of fall protection.

Use of personal fall arrest systems at the edge of a well, pit, shaft, or similar excavation.

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 https://www.osha.gov.

March 10, 2004

Mr. Richard Marshall
Safety Director
Richard Goettle, Inc.
9696 Skillman Street, Suite 280
Dallas, Texas 75243

Re: When personal fall protection is used at a drill shaft, is a warning line also required?

Dear Mr. Marshall:

This is in response to your letter dated December 23, 2003, to the Occupational Safety and Health Administration (OSHA). You ask for guidance with respect to the use of fall protection during drilling operations. We apologize for the delay in responding.