D.C. Mun. Regs. tit. 18, § 1328
1328.1 If instructed by the Director, all drivers renewing or applying for a Hazardous Material Endorsement shall pass a security threat assessment conducted by the Transportation Security Administration of the Federal Department of Homeland Security, and meet all other requirements in 49 CFR 1572.
1328.2 To initiate the assessment in § 1328.1, drivers must first contact the Department of Motor Vehicles.
1328.3 Upon receipt of a finding by the Transportation Security Administration that an applicant or permittee represents a security threat, the Director shall refuse to issue, or shall immediately revoke any hazardous materials endorsement effective 5 days after mailing a notice of revocation to the permittee's address in the Department's records.
SOURCE: Final Rulemaking published at 51 DCR 10913 (November 26, 2004); as amended by Final Rulemaking published at 52 DCR 5758 (June 17, 2005); as amended by as amended by Final Rulemaking published at 53 DCR 2206 (March 24, 2006).