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 http://www.osha.gov.

March 21, 1997

Mr. Dennis J. Morikawa
Morgan, Lewis and Bockius LLP
Counselors at Law
2000 One Logan Square
Philadelphia, PA 19103-6993

Dear Mr. Morikawa:

This is in response to your letter of March 10, requesting an interpretation of the Occupational Safety and Health Administration (OSHA) regulations found in section §1926.452(b)(3) which addresses longitudinal bracing across the inner and outer rows of posts on tube and coupler scaffolds.

Your question specifically requested the intent of the phrase "every fifth post". OSHA's intent is that such bracing be repeated beginning at least at every fifth post. This would be comparable to Figure 1 that was enclosed with your request.

If you have any further questions, contact:

The Office of Construction Standards
and Compliance Assistance
U.S. Department of Labor - OSHA
Room N3621
Washington, D.C. 20210


Roy F. Gurnham, Manager
Office of Construction Sta