DOT RESOURCES
DOT Compliance Resources for Employers
Access practical guidance, forms, regulatory information, and tools to help employers manage DOT drug and alcohol testing programs and maintain compliance.
FMCSA Drug & Alcohol Testing
Guidance for FMCSA-regulated employers on drug and alcohol testing requirements, including pre-employment, random, post-accident, reasonable suspicion, return-to-duty, and follow-up testing.
View FMCSA Resources →49 CFR Part 40
Review the federal procedures that govern DOT drug and alcohol testing, including specimen collection, laboratory testing, MRO review, alcohol testing, refusals, and return-to-duty requirements.
View Part 40 Resources →Clearinghouse Resources
Access FMCSA Drug & Alcohol Clearinghouse guidance for employer queries, driver records, violations, return-to-duty status, and ongoing compliance responsibilities.
View Clearinghouse Resources →Employer & DER Tools
Practical resources for employers and Designated Employer Representatives, including program administration, testing responsibilities, employee education, recordkeeping, and compliance support.
View Employer & DER Tools →FMCSA
FMCSA Drug & Alcohol Testing Resources
Resources for motor carriers and employers subject to FMCSA drug and alcohol testing requirements.
FMCSA Employer Overview
Review FMCSA guidance explaining which employers and drivers are subject to DOT drug and alcohol testing requirements and the employer’s responsibilities under 49 CFR Parts 382 and 40.
View FMCSA Employer Overview →DOT Employer Handbook
Download the U.S. Department of Transportation employer handbook for guidance and best practices on managing a DOT drug and alcohol testing program.
View DOT Employer Handbook →FMCSA Employer Resources & Downloads
Access FMCSA brochures, guides, videos, testing resources, and other materials designed to help motor carriers administer compliant drug and alcohol testing programs.
View FMCSA Employer Resources →FMCSA Testing Procedures
Review FMCSA guidance on DOT drug and alcohol testing procedures, including the testing process, employer responsibilities, and requirements for properly administering regulated tests.
View Testing Procedures →49 CFR PART 40
DOT Drug & Alcohol Testing Procedures
Resources explaining the federal procedures that govern DOT drug and alcohol testing across all DOT-regulated transportation industries.
49 CFR Part 40 – Current Rule
Review the current DOT procedures governing workplace drug and alcohol testing, including employer responsibilities, collections, laboratory testing, MRO review, alcohol testing, refusals, and return-to-duty procedures.
View 49 CFR Part 40 →Part 40 Questions & Answers
Review official DOT questions and answers that provide authoritative guidance and interpretation on specific 49 CFR Part 40 requirements and testing situations.
View Part 40 Q&A →DOT Drug & Alcohol Testing Forms
Access official DOT testing forms and related materials used in regulated drug and alcohol testing programs, including the Federal Drug Testing Custody and Control Form and Alcohol Testing Form resources.
View DOT Forms →Urine Specimen Collection Guidelines
Review DOT’s current collection procedures and guidance for conducting federally regulated urine drug testing collections in accordance with 49 CFR Part 40.
View Collection Guidelines →FMCSA CLEARINGHOUSE
Drug & Alcohol Clearinghouse Resources
Resources to help employers understand Clearinghouse registration, queries, violations, return-to-duty status, and ongoing FMCSA compliance responsibilities.
Clearinghouse Employer Learning Center
Access FMCSA resources for employers covering Clearinghouse registration, consent requests, queries, violations, return-to-duty reporting, C/TPA designation, and other compliance responsibilities.
View Employer Learning Center →Clearinghouse Query Plans
Review FMCSA query-plan requirements and purchase information for conducting pre-employment and annual Clearinghouse queries for CDL drivers.
View Query Plan Information →Clearinghouse Violations & Return-to-Duty
Review FMCSA guidance on reporting drug and alcohol program violations, recording return-to-duty test results, and managing driver status through the Clearinghouse.
View Violations & RTD Resources →Clearinghouse Frequently Asked Questions
Search official FMCSA answers to common employer questions about registration, queries, consent, violations, service agents, driver records, and the return-to-duty process.
View Clearinghouse FAQs →EMPLOYER & DER TOOLS
Employer & DER Compliance Resources
Practical tools and guidance for employers and Designated Employer Representatives responsible for administering DOT drug and alcohol testing programs.
DER Roles & Responsibilities
Review DOT guidance on the responsibilities of the Designated Employer Representative, including receiving test results, removing employees from safety-sensitive duties when required, coordinating testing, and overseeing the employer’s DOT drug and alcohol testing program.
View DER Guidance →Supervisor Reasonable Suspicion Training
Review FMCSA guidance on the training required for supervisors of CDL drivers to recognize physical, behavioral, speech, and performance indicators of alcohol misuse and controlled substance use.
View Supervisor Training Guidance →Employee Education & Policy Requirements
Review FMCSA requirements for providing CDL drivers with written drug and alcohol policy materials, educational information, and documentation confirming receipt of those materials.
View Employee Education Guidance →Random Testing Program Requirements
Review FMCSA guidance on managing random drug and alcohol testing programs, including pool composition, selection frequency, testing timing, and employer responsibilities for maintaining a compliant program.
View Random Testing Guidance →