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  • § 382.103
  • § 382.107
  • § 382.109
    Preemption of State and local laws.
  • § 382.113
    Requirement for notice.
  • § 382.115
    Starting date for testing programs.
  • § 382.121
    Employee admission of alcohol and controlled substances use.
  • § 382.205
    On-duty use.
  • § 382.213
    Controlled substance use.
  • § 382.301
    Pre-employment testing.
  • § 382.303
    Post-accident testing.
  • § 382.305
    Random testing.
  • § 382.307
    Reasonable suspicion testing.
  • § 382.309
    Return-to-duty testing.
  • § 382.401
    Retention of records.
  • § 382.403
    Reporting of results in a management information system.
  • § 382.405
    Access to facilities and records.
  • § 382.413
    Inquiries for alcohol and controlled substances information from previous employers.
  • § 382.501
    Removal from safety-sensitive function.
  • § 382.503
    Required evaluation and testing.
  • § 382.507
  • § 382.601
    Employer obligation to promulgate a policy on the misuse of alcohol and use of controlled substances.
  • § 382.603
    Training for supervisors.
  • § 382.605
    Referral, evaluation, and treatment.

Part 382

Section § 382.503: Required evaluation and testing.

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View regulations for Part 382

Question 1: If (1) a driver has a verified positive test result for controlled substances or an alcohol concentration of 0.04 or greater and (2) the driver subsequently obtains a verified negative result for controlled substances or a test result of less than 0.04 alcohol concentration without having been evaluated by a substance abuse professional (SAP), may the motor carrier accept the subsequent test results and ignore the requirement to refer the driver to an SAP for evaluation and possible treatment?


No. A motor carrier must have a report from an SAP showing that the driver has been evaluated and may return to work because he or she:

  • (1) Does not need treatment;
  • (2) Needs part-time outpatient treatment, but may continue to drive while being treated on his or her off duty time; or
  • (3) Needed full-time outpatient or inpatient treatment, has received such treatment, and is ready to return to driving.

The driver must also pass a return to duty controlled substances or alcohol test that complies with all of the requirements of parts 40 and 382.

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