Driver Disqualification

Definition

A driver disqualification is the federal prohibition on driving a CMV imposed under 49 CFR §391.15 for serious offenses. The disqualification clock runs separately from any state-level CDL suspension. Examples: driving under the influence (1 year first offense, lifetime second), refusing a controlled-substance test (1 year first), leaving the scene of an accident in a CMV (1 year first), causing a fatality through negligent operation (1 year), and railroad-grade-crossing violations (60 days first offense). FMCSA tracks disqualifications through CDLIS; carriers must verify driver status through the state DMV before dispatch. A disqualified driver who continues to operate exposes the carrier to severe civil penalties under §391.15(c).