Within 14 days of first using a driver to perform safety-sensitive functions, an employer discovers that a driver had a positive controlled substances and/or 0.04 alcohol concentration test result within the previous two years.
Section § 382.413: Inquiries for alcohol and controlled substances information from previous employers
Guidance Q&AQuestion 2: Within 14 days of first using a driver to perform safety-sensitive functions, an employer discovers that a driver had a positive controlled substances...