When an employee is subject to the drug and alcohol testing rules of more than one DOT agency, which DOT agency’s random testing rate applies?
If an employee performs safety-sensitive functions that would subject him to the DOT testing programs of more than one DOT agency (e.g. FMCSA and PHMSA), the employee shall be subject to random alcohol and/or controlled substances testing at the annual percentage rate established for the calendar year by the DOT agency regulating more than [...]