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Three-foot clearance around spray booths

Summary A safety consultant asked where OSHA’s three-foot clearance for spray booths applied. OSHA said the requirement to keep the area free from storage and combustible construction referred to the booth’s exterior. It pointed to the variance process for relief.
Document
Federal opinion letter
Agency
Occupational Safety and Health Administration (OSHA)
Document number
1977-04-18
Date issued
April 18, 1977
Status
Active
Status last verified October 10, 2026

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April 18, 1977

Mr. Edward M. Morris,
President
Occupational Safety Consultants, Inc.
[Recipient address omitted]
Dear Mr. Morris:

This is in response to your letter of March 17, 1977, regarding a formal interpretation of 29 CFR 1910.107(b)(9) Spray Booths, Cleaning.

The Occupational Safety and Health Administration (OSHA) standard states, "Cleaning. Spray Booths shall be so installed that all portions are readily accessible for cleaning. A clear space of not less than 3 feet on all sides shall be kept free from storage or combustible construction." OSHA's interpretation of "A clear space of not less than 3 feet on all sides shall be kept free from storage or combustible construction" is that it applies to the exterior of spray booths.

29 CFR 1905.11 (copy enclosed) gives the rules for variances and other relief under section 6(d) of the Occupational Safety and Health Act of 1970.

The Area Director of the local OSHA office may be of assistance for a particular worksite situation.

Thank you for you concern and continuing interest in occupational safety and health.

Sincerely,
John K. Barto,
Chief
Division of Occupational Safety Programing

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