Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.187
Subpart H - Split Specimen Tests
§ 40.187 What does the MRO do with split specimen laboratory results?
As the MRO, the split specimen...
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Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.177
Subpart H - Split Specimen Tests
§ 40.177 What does the second laboratory do with the split specimen when it is tested to reconfirm the presence of a drug or drug metabolite?
...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.179
Subpart H - Split Specimen Tests
§ 40.179 What does the second laboratory do with the split specimen when it is tested to reconfirm an adulterated test result?...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.181
Subpart H - Split Specimen Tests
§ 40.181 What does the second laboratory do with the split specimen when it is tested to reconfirm a substituted test result?
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.193
Subpart I—Problems in Drug Tests
§ 40.193 What happens when an employee does not provide a sufficient amount of specimen for a drug test?
...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.195
Subpart I—Problems in Drug Tests
§ 40.195 What happens when an individual is unable to provide a sufficient amount of specimen for a pre-employment follow-up or return-to-duty test...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.197
Subpart I—Problems in Drug Tests
§ 40.197 What happens when an employer receives a report of a dilute urine specimen?
(a) As the employer, if the MRO...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.199
Subpart I—Problems in Drug Tests
§ 40.199 What problems always cause a drug test to be cancelled?
(a) As the MRO, when the laboratory discovers a “fatal...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.201
Subpart I—Problems in Drug Tests
§ 40.201 What problems always cause a drug test to be cancelled and may result in a requirement for another collection?
As...
Federal Regulation
DOT Rule 49 CFR Part 40 Section 40.208
Subpart I—Problems in Drug Tests
§ 40.208 What problem requires corrective action but does not result in the cancellation of a test?
(a) If, as a laboratory, collector,...