Nationwide Testing Association specialize in assisting our clients in creating a cost-efficient, compliant program. Regulations quoted below are from 49 CFR Part 382 Subpart B as pertaining to drivers of commercial motor vehicles regarding controlled substance use.The employer must receive a verified negative drug screen before allowing any employee to perform safety-sensitive duties.
https://nta-testing.com/our-programs-services/usdot-drug-alcohol-testing-program/alcohol-testing-program/
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