District of Columbia Code Division VIII. General Laws. § 50-406. Disqualification.

(1) Driving a commercial motor vehicle while under the influence of alcohol or a controlled substance. For the purposes of this section, the phrase “while under the influence of alcohol” means an alcohol concentration of 0.04 grams or more per 100 milliliters of blood, per 210 liters of breath, or per 67 milliliters of urine. The phrase “controlled substance” means a drug, substance, or immediate precursor, as set forth in Chapter 9 of Title 48;

(2) Leaving the scene of an accident that involves a commercial motor vehicle operated by the person;

(3) Using a commercial vehicle in the commission of a felony;

(4) Commission of 2 or more serious traffic violations that involve a commercial motor vehicle operated by the person within a 3-year period; or

(5) Operation of a motor vehicle where the driver, the motor vehicle or motor vehicle operation owning the vehicle has been issued an out-of-service order and that order has not been cancelled or withdrawn.

(b)(1) A person who is found to have committed any violation of paragraphs (1) through (4) of subsection (a) of this section may have his or her commercial driver's license suspended for one year for the first violation, from 10 years to life for the second violation, and for life for the third violation.

(2) A person who is found to have committed any violation set forth in subsection (a)(5) of this section may have his or her commercial driver's license suspended for 90 days to one year for the first violation, from one to 5 years for the second violation in any 10-year period, and from 3 to 5 years for the third violation in any 10-year period.