Statutes > District of Columbia Statutes > Division I - Government of District (TITLE 1 to TITLE 10) > TITLE 1 - GOVERNMENT ORGANIZATION (Chapter 1 to Chapter 15) > Chapter 6 - Merit Personnel System (Subchapter I to Subchapter XXXVI) > Subchapter XX-A - Testing of Drivers of Commercial Motor Vehicles for the Presence of Alcohol and Controlled Substances (Section 1-620.11)