49 CFR § 384.235
Commercial driver's license Drug and Alcohol Clearinghouse
November 18, 2020
Beginning January 6, 2023, the State must request information from the Clearinghouse in accordance with §383.73 of this chapter.
[81 FR 87730, Dec. 5, 2016, as amended at 84 FR 68057, Dec. 13, 2019]