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DOT Regulations

§ 40.127 What are the MRO's functions in reviewing negative test results?

§ 40.129 What are the MRO's functions in reviewing laboratory confirmed positive, adulterated, substituted, or invalid drug test results?

§ 40.131 How does the MRO or DER notify an employee of the verification process after a confirmed positive, adulterated, substituted, or invalid test result?

§ 40.133 Under what circumstances may the MRO verify a test as positive, or as a refusal to test because of adulteration or substitution, without interviewing the employee?

§ 40.135 What does the MRO tell the employee at the beginning of the verification interview?

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