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OSHA clarifies asbestos standard smoking ban (1/21)

January 21, 2009
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Richard E. Fairfax, OSHA’s Director of Enforcement Programs, issued the following letter of interpretation regarding provisions in the agency’s asbestos standard banning smoking, posted on OSHA’s web site January 16. Here are excerpts:

“You asked whether federal OSHA is enforcing OSHA's letter of interpretation to Mr. C.R. Sledge, September 4, 1990, concerning the asbestos standards' no-smoking provision. You stated that this OSHA interpretation is ambiguous and seems to imply that a work area's airborne asbestos level, no matter how small a concentration of airborne fibers, such as background levels from installed asbestos-containing building material, could be considered an "occupational exposure" and, therefore, smoking would not be allowed.

“Paragraphs 1910.1001(i)(4), 1926.1101(j)(4), and 1915.1001(j)(4) all provide: The employer shall ensure that employees do not smoke in work areas where they are occupationally exposed to asbestos because of activities in that work area. (emphasis added)

“As we explained in our 1990 letter to Mr. Sledge, the agency determined that the health risk for smoking employees exposed to asbestos is substantially higher than nonsmoking ones. We explained in the preamble to the rule that "[t]his is an expansion of the present smoking ban, which, as in most OSHA health standards, is confined to regulated areas where exposures are elevated." (55 FR at 3726, February 5, 1990). The smoking ban in the asbestos standards does not specify a level of exposure. However, the exposure must have its source in the workplace. We have explained that this means that an employee who works in areas where there are operations that disturb asbestos, such as asbestos abatement and renovation activities, may be occupationally exposed, regardless of whether that employee disturbs or handles the asbestos. (55 FR 3726, February 5, 1990, 51 FR 22677, June 20, 1986). For your information, we are attaching two OSHA memoranda from 1990, which provide further background on our enforcement policies for this no-smoking provision. It should be understood that the method prescribed for measuring employee exposure to airborne asbestos is the method in the OSHA asbestos standards, Phase Contrast Microscopy (PCM), and this method's limit of detection is about 0.01 f/cc.

“It should also be understood that the no-smoking provision would not apply to employees who occupy an area where some of the building materials contain asbestos but no materials are being disturbed and no fibers are being released into the air that the employee breathes. OSHA's preamble to its earlier 1986 asbestos standard briefly discussed the complex area of low-level asbestos contamination in buildings and concluded that other federal agencies, particularly the EPA, already address this area. (See 51 FR 22677.) We recommend that building owners and employers with employees working in buildings with installed asbestos-containing materials refer to the EPA's publication number 20T-2003, Managing Asbestos in Place, A Building Owner's Guide to Operations and Maintenance Programs for Asbestos-Containing Materials, July 1990, commonly known as "The Green Book.”

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