DOT Rule 49 CFR Part 40 Section 40.145

Subpart G - Medical Review Officers and the Verification Process § 40.145 On what basis does the MRO verify test results involving adulteration or substitution?

(a) As an MRO, when you receive a laboratory report that a specimen is adulterated or substituted, you must treat that report in...

DOT Rule 49 CFR Part 40 Section 40.141 Q&A

40.141 ...

DOT Rule 49 CFR Part 40 Section 40.141

Subpart G - Medical Review Officers and the Verification Process § 40.141 How does the MRO obtain information for the verification decision? As the MRO, you must do the following as you make the determinations needed for a verification decision: (a) You must conduct a...

DOT Rule 49 CFR Part 40 Section 40.139

Subpart G - Medical Review Officers and the Verification Process § 40.139 On what basis does the MRO verify test results involving opiates?

As the MRO, you must proceed as follows when you receive a laboratory confirmed positive opiate result:

(a) If the laboratory confirms the...

DOT Rule 49 CFR Part 40 Section 40.137

Subpart G - Medical Review Officers and the Verification Process§ 40.137 On what basis does the MRO verify test results involving marijuana, cocaine, amphetamines, semi-synthetic opioids, or PCP? (a) As the MRO, you must verify a confirmed positive test result for marijuana, cocaine...

DOT Rule 49 CFR Part 40 Section 40.135

Subpart G - Medical Review Officers and the Verification Process § 40.135 What does the MRO tell the employee at the beginning of the verification interview? (a) As the MRO, you must tell the employee that the laboratory has determined that the employee's test result was positive,...

DOT Rule 49 CFR Part 40 Section 40.133

Subpart G - Medical Review Officers and the Verification Process§ 40.133 Without interviewing the employee, under what circumstances may the MRO verify a test result as positive, or as a refusal to test because of adulteration or substitution, or as cancelled because the test was invalid? (a)...

DOT Rule 49 CFR Part 40 Section 40.131 Q&A

§40.131 ...

DOT Rule 49 CFR Part 40 Section 40.131

Subpart G - Medical Review Officers and the Verification Process§ 40.131 How does the MRO or DER notify an employee of the verification process after receiving laboratory confirmed non-negative drug test results?(a) When, as the MRO, you receive a confirmed positive, adulterated, substituted...

DOT Rule 49 CFR Part 40 Section 40.129

Subpart G - Medical Review Officers and the Verification Process § 40.129 What are the MRO's functions in reviewing laboratory confirmed non-negative drug test results? (a) As the MRO, you must do the following with respect to confirmed positive, adulterated, substituted, or invalid results...

Drug and Alcohol Testing

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