Subpart G—Medical Review Officers and the Verification Process

1. CFR
2. ›
3. Title 49
4. ›
5. Subtitle A
6. ›
7. Part 40
8. ›
9. Subpart G

Sections

Section numbering in the official eCFR can be non-consecutive. Omitted section numbers are not treated here as reserved unless the source explicitly labels them that way.

• 40.121
  § 40.121 Who is qualified to act as an MRO?
• 40.123
  § 40.123 What are the MRO's responsibilities in the DOT drug testing program?
• 40.125
  § 40.125 What relationship may an MRO have with a laboratory?
• 40.127
  § 40.127 What are the MRO's functions in reviewing negative test results?
• 40.129
  § 40.129 What are the MRO's functions in reviewing laboratory confirmed non-negative drug test results?
• 40.131
  § 40.131 How does the MRO or DER notify an employee of the verification process after receiving laboratory confirmed non-negative drug test results?
• 40.133
  § 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?
• 40.135
  § 40.135 What does the MRO tell the employee at the beginning of the verification interview?
• 40.137
  § 40.137 On what basis does the MRO verify test results involving marijuana, cocaine, amphetamines, semi-synthetic opioids, or PCP?
• 40.139
  § 40.139 On what basis does the MRO verify test results involving 6-acetylmorphine, codeine, and morphine?
• 40.141
  § 40.141 How does the MRO obtain information for the verification decision?
• 40.143
  § 40.143 [Reserved]
• 40.145
  § 40.145 On what basis does the MRO verify test results involving adulteration or substitution?
• 40.147
  § 40.147 [Reserved]
• 40.149
  § 40.149 May the MRO change a verified drug test result?
• 40.151
  § 40.151 What are MROs prohibited from doing as part of the verification process?
• 40.153
  § 40.153 How does the MRO notify employees of their right to a test of the split specimen?
• 40.155
  § 40.155 What does the MRO do when a negative or positive test result is also dilute?
• 40.157
  § 40.157 [Reserved]
• 40.159
  § 40.159 What does the MRO do when a drug test result is invalid?
• 40.160
  § 40.160 What does the MRO do when a valid test result cannot be produced and a negative result is required?
• 40.161
  § 40.161 What does the MRO do when a drug test specimen is rejected for testing?
• 40.162
  § 40.162 What must MROs do with multiple verified results for the same testing event?
• 40.163
  § 40.163 How does the MRO report drug test results?
• 40.165
  § 40.165 To whom does the MRO transmit reports of drug test results?
• 40.167
  § 40.167 How are MRO reports of drug results transmitted to the employer?