The SAP determines the plan. DOT requires at least 6 unannounced tests in the first 12 months
(commonly), and the plan may extend up to 60 months, depending on the SAP.
Regulatory
Compliance.
This service supports compliance with:
- 49 CFR Part 40 Subpart O – SAP Return-to-Duty and Follow-Up Testing
- 49 CFR Part 382 – FMCSA Drug & Alcohol Regulations
- DOT follow-up testing plan implementation and documentation requirements
Follow-up testing is separate from random testing and must be completed per the SAP plan
to maintain compliance.

