You can find more information concerning the role of MROs in several sections of this part:
§§40.47–40.49—Correction of form and kit errors.
§40.67—Role in direct observation and other atypical test situations.
§40.83—Laboratory handling of fatal and correctable flaws.
§40.97—Laboratory handling of test results and quantitative values.
§40.99—Authorization of longer laboratory retention of specimens.
§40.101—Relationship with laboratories; avoidance of conflicts of interest.
§40.105—Notification of discrepancies in blind specimen results.
§40.171—Request for test of split specimen.
§40.187—Action concerning split specimen test results.
§40.193—Role in “shy bladder” situations.
§40.195—Role in cancelling tests.
§§40.199–40.203—Documenting errors in tests.
§40.327—Confidentiality and release of information.
§40.347—Transfer of records.
§40.353—Relationships with service agents.