§ 653.51 - Follow-up testing.

Each employer shall ensure that each covered employee who returns to duty after a required evaluation made under § 653.37 is subject to unannounced follow-up drug testing as provided for in § 653.63(d). The employer may require the employee to take one or more follow-up alcohol tests, with a result indicating an alcohol concentration of less than 0.04, as directed by the SAP, to be performed in accordance with 49 CFR part 40.