How can companies using the Q.E.D.® test in very remote areas comply with the DOT's requirement that confirmation tests on positive screening tests must be conducted within 30 minutes?

How can companies using the Q.E.D.® test in very remote areas comply with the DOT’s requirement that confirmation tests on positive screening tests must be conducted within 30 minutes?

The DOT will accept results of confirmation tests conducted more than 30 minutes after a positive screening test. Refer to 49 CFR Part 40 section 40.65, paragraph (b). The DOT added a sentence which directs the Breath Alcohol Technician (BAT) to simply explain “why?” if a confirmation test is done more than 30 minutes after a screening test.