DOT Rule 49 CFR Part 40 Section 40.137 Q&A
§§ 40.137, 40.141, 40.151 ...
Drug and Alcohol Testing
In This Section
May 2026 Part 40 Questions and Answers
2024 MIS Data
Spanish Language CCF - Instructions
These are the instructions for completing the Spanish language Federal CCF.Spanish Language CCF
This is the Spanish language Federal Drug Testing Custody and Control Form which can be used for drug tests regulated by the U.S. DOT.DOT's Notice on Testing for Marijuana
DOT OFFICE OF DRUG AND ALCOHOL POLICY AND COMPLIANCE NOTICE
On December 18, 2025, the President of the United States issued an Executive Order directing the...
2023 MIS Data
Oral Fluid Specimen Collection Procedures Guidelines
These guidelines, together with the 49 CFR Part 40, and the DOT Operating Administration rules, with provide collectors with the information needed in the performance of their collection duties.
HHS Certified Oral Fluid Laboratories and Oral Fluid Collection Devices
This page contains a list of oral fluid drug testing laboratories certified by HHS under the National Laboratory Certification Program (NLCP). To comply with DOT’s drug testing regulation, 49 CFR Part 40, DOT-regulated employers may only utilize these laboratories and oral fluid devices. ...