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49 U.S.C. 31133, 31136, 31301 et seq., 31502; sec. 32934 of Pub. L. 112-141, 126 Stat. 405, 830; and 49 CFR 1.87.
66 FR 43103, Aug. 17, 2001, unless otherwise noted.
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No driver shall perform safety-sensitive functions within four hours after using alcohol. No employer having actual knowledge that a driver has used alcohol within four hours shall permit a driver to perform or continue to perform safety-sensitive functions.