A big rig carrier passing under a sign on the freeway.

DOT Compliance Information & Resources

As experts in the field of DOT compliance, DISA is dedicated to providing employers, like you, with relevant and useful information relating to DOT policies and procedures. This information is regularly updated to ensure it remains pertinent and valuable to anyone with DOT concerns.

Changes to FMCSA Regulations

The Changes to FMCSA Regulations contain the new Federal Motor Carrier Safety Administration (FMCSA) regulations issued on March 30, 2004. It is extremely important that all background checks, including drug and alcohol testing cover the previous three (3) years. This document contains only the changes to Parts 390 and 391. We strongly suggest that you visit the FMCSA website for more information.

DOT Agency Policies

We provide our clients with all of the official DOT agency policies through restricted access to our online system, DISAWorks®. Included in this service are instructions for completing the policies.

If you are a DISA client, please log into DISAWorks and click on the Programs/Compliance/Policies Tab to enter this restricted page.

DOT Agency Regulations

The links below provide access to a variety of documents including 49 CFR Part 40, Procedures for Transportation Workplace Drug and Alcohol Testing Programs. This version of Part 40 has built in all the technical amendments and published Questions & Answers.

Compliance Documents

DOT Agency Websites

For more information on DISA's DOT compliance services or to request further resources, call us at 1-800-752-6432 or This email address is being protected from spambots. You need JavaScript enabled to view it..