(a) A railroad may use a service agent (such as a consortium/third party administrator (C/TPA)) to act as its agent to carry out any role in random testing specifically permitted under subpart Q of part 40 of this title, such as maintaining random pools, conducting random selections, and performing random urine drug collections and breath alcohol tests.

(b) A railroad may not use a service agent to notify a regulated employee that he or she has been selected for random testing. A regulated employee who has been selected for random testing must otherwise be notified of the selection by his or her employer. A service agent may also not perform any role that §40.355 of this title specifically reserves to an employer, which, for purposes of this subpart, is defined as a railroad or a contractor performing railroad-accepted testing.

(c) A railroad is primarily responsible for compliance with the random alcohol and drug testing of this subpart, but FRA reserves the right to bring an enforcement action for noncompliance against the railroad, its service agents, its contractors, and/or its employees.

(d) If a railroad conducts random drug and/or alcohol testing through a C/TPA, the number of employees required to be tested may be calculated for each individual railroad belonging to the C/TPA, or may be based on the total number of regulated employees covered by the C/TPA in a larger combined railroad or DOT agency random pool. Selections from combined railroad random pools must meet or exceed the highest minimum annual percentage rate established under this subpart or any DOT agency drug testing rule that applies to any member of that pool.