§40.253. What are the procedures for conducting an alcohol confirmation test? — Inbound Citations
49 C.F.R. § 40.253
Statutory Authority
Cited by 7 regulations in release 2026-08-27.
Citations to 49 C.F.R. § 40.253 as a whole
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(e) Even if more than 30 minutes have passed since the screening test result was obtained, you must begin the confirmation test procedures in § 40.253, not another screening test.
Citations to §40.253(a)
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(2) The BAT does not conduct an air blank before the confirmation test (see § 40.253(a));
Citations to §40.253(a)(1)
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(3) There is not a 0.00 result on the air blank conducted before the confirmation test (see § 40.253(a)(1) and (2));
Citations to §40.253(a)(2)
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(3) There is not a 0.00 result on the air blank conducted before the confirmation test (see § 40.253(a)(1) and (2));