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Part 40 Rule Changes

On November 13, 2017, the DOT Office of Drug & Alcohol Policy and Compliance issued a final rule which harmonizes 49 CFR Part 40 with the revised Dept. of Health and Human Services (DHHS) Mandatory Guidelines established for drug & alcohol testing of federal...

The What, When, and How of Air Blanks

Some of our commonly asked questions have to do with air blanks: what they are, when to conduct them, and how. Here are the answers to those burning questions: What is an air blank? An air blank, or blank check, is a test to insure there is no alcohol present in the...
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