CDL: Employees required to maintain a Commercial Drivers License (CDL) are also subject to the Federal Motor Carrier Safety Administration (FMCSA) Drug and Alcohol Testing Program, including pre-employment, random, reasonable suspicion, post-accident, return-to-duty, and follow-up testing, as required by federal regulations. In addition to above requirements: new hires must, as a condition of employment, pass the following pre-offer and post-offer/hire processes: in-person interviews, reference checks, and background checks, which may include local police check, DMV check, drug screen, and fingerprint checks through CBI/FBI. .