Intrastate and Interstate DOT Numbers
How do I apply for an Intrastate or Interstate DOT Number?
You must apply online at www.fmcsa.dot.gov
How do I update my Intrastate or Interstate DOT Number?
How do I re-activate my existing Interstate DOT Number?
If you have any questions on your Interstate DOT number, please call 1-800-832-5660.
How do I re-activate my existing Intrastate DOT Number (CT Only)?
Fax a valid 'Acord 25' Certificate of Liability Insurance form along with the completed MCS-150CT form to the CT DMV at 860-263-5587 or mail to:
Department of Motor Vehicles
60 State Street
Wethersfield, CT 06161
Room 145 Attn: DOT Number Unit
There is no public access to the DOT Number Unit. All transactions must be done via fax or mail.
All Intrastate Motor Carriers are required by CT law to update their DOT number with an MCS-150CT application every 2 years or immediately if any information changes.
You are required to send proof of insurance in the form of a Certificate of Liability 'Acord 25' at least once every year to be in compliance. On the Acord 25 Certificate, the 'certificate holder' must list the State of Connecticut Department of Motor Vehicles, 60 State Street, Wethersfield, CT 06161.
DMV needs to see the combined single limit of the Auto Liability:
If the policy reads “Any Auto,” the vehicles do not have to be listed on the certificate.
If the policy reads “Scheduled Autos,” the vehicles must be listed in the description by make, model, vehicle identification number and year.
Please allow 7-10 days after you submit the above documents for reactivation of your DOT Number.
You will then receive a confirmation letter from the Federal DOT with a 'Personal Identification Number'. You will need this PIN to update your DOT number, every year for interstate and every 2 years for intrastate, directly on-line at www.fmcsa.dot.gov.
However, the certificate of liability must still be sent to the Department of Motor Vehicles, Insurance Compliance Unit at least once every year.
Failure to comply may result in inactivation of your DOT Number.