Compliance of using warning lines and/or control access zones for fall protection on roofs with a slope greater than 4:12.

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.

September 26, 2003

Mr. Michael C. Wright, PE, CSP, CPE
Managing Principal
LJB, Inc.
3100 Research Blvd.
PO Box 20246
Dayton, OH 45420-0246

Re: Whether warning lines and/or control access zones can be employed for roofing work (residential and non-residential) on roofs with a slope greater than 4:12

Dear Mr. Wright:

Fall protection and controlled access zones for overhand bricklaying

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. Luis M. Moreno
7108 NW 73rd Street
Tamarac, FL 33321

Re: Fall protection and controlled access zones in overhand bricklaying and related work; 29 CFR 1926.501(b)(4) and (9), 1926.502(g)

Dear Mr. Moreno:

Clarification on controlled access zones for leading edge work.

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.

April 30, 2010

Letter # 20091008-9289

Re: Clarification on controlled access zones for leading edge work.

Question: When using a controlled access zone for leading edge work where one side has no wall or guardrail system to which a control line can be connected, is it permissible to tie control lines to temporary guardrail stanchions 10 feet off the leading edge?

Answer:

As a preliminary matter, 29 CFR §1926.501(b)(2)(i) states:

Whether an employer can use a controlled access zone during curtain wall installation.

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.