49 C.F.R. § 655.7 Starting date for testing programs.
Title 49 - Transportation
An employer must have an anti-drug and alcohol misuse testing program in place by the date the employer begins operations.
Title 49: Transportation
PART 655—PREVENTION OF ALCOHOL MISUSE AND PROHIBITED DRUG USE IN TRANSIT OPERATIONS
Subpart A—General
§ 655.7 Starting date for testing programs.