Confirmation testing MUST be performed by a certified laboratory on any Urine Drug Screen that has been found to be non-negative. The laboratory results of the Urine Drug Screen Confirmation are then forwarded to a Certified Medical Review Officer for final evaluation; this is the beginning of the VERIFICATION process.
The UDT Verification MUST be performed by a Certified Medical Review Officer (CMRO).
The verification process:
a. Verify the Donor by confirming DOB or last 4 digits of SSN.
b. Review the chain-of-custody.
c. Review the confirmed lab result.
d. Query donor regarding recent medication prescriptions.
e. Query donor regarding recent illicit substance use.
f. Inform donor regarding substances identified in specimen.
The employee will be asked to follow-up at the medical center within 24 hours of their MRO interview and submit a formal request for referee testing in writing. Under the labor code the employer is responsible for all costs of confirmation, MRO services, courier services, referee testing and d-l isomers.
Medical Marijuana § 40.137 - MRO Responsibilities
(2) There can be a legitimate medical explanation only with respect to a substance that has a legitimate medical use. Use of a drug of abuse (e.g., heroin, PCP, marijuana) or any other substance (see §40.151(f) and (g)) that cannot be viewed as having a legitimate medical use can never be the basis for a legitimate medical explanation, even if the substance is obtained legally in a foreign country (or the State of California).
(4) Even if you (MRO) find that there is a legitimate medical explanation under this paragraph (e) and verify a test negative, you (MRO) may have a responsibility to raise fitness-for-duty considerations with the employer (see §40.327).
THE FEDERAL GOVERNMENT TAKES THE STANCE THAT THERE IS NO LEGITIMATE USE FOR "MEDICAL MARIJUANA" THEREFORE ANY URINE DRUG TEST COMFIRMED POSITIVE FOR MARIJUANA WILL BE VERIFIED AS POSITIVE FOR MARIJUANA.