Doing Business with Connecticut Department of Transportation
View a list of resources with doing business with the Connecticut Department of Transportation.
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Commercial Driver's License (CDL)
Useful information on obtaining, renewing, and transferring a Commercial Driver's License (CDL).
Agency: Department of Motor VehiclesCommercial Driver's License Medical Requirements
In order to maintain a CDL and CDIP, commercial drivers must provide the DMV with a Medical Examiner's Certificate from a certified medical examiner.
Agency: Department of Motor VehiclesLearn how the State of Connecticut DMV enforces commercial vehicle safety.
Agency: Department of Motor VehiclesConnecticut Commercial Driver’s Manual
The state's commercial driver's manual is available to read or download from the site.
Agency: Department of Motor VehiclesA DOT Number is required and serves as a unique identifier when collecting and monitoring a company's safety information.
Agency: Department of Motor VehiclesInternational Registration Plan (IRP)
Connecticut is a member of the International Registration Plan (IRP). Motor vehicles registered in Connecticut that travel through other IRP districts, such as US states and Canadian provinces. Find IRP information here.
Agency: Department of Motor VehiclesDrivers can obtain credentials and conduct transactions related to fuel taxes, international registration and oversize and overweight permits.
Agency: Department of Motor VehiclesHow to obtain a commercial registration.
Agency: Department of Motor VehiclesTaxis, Livery, and Moving Companies
Procedures for applying for taxi, livery and moving companies; transferring permits, record keeping and information about fares.
Agency: Department of TransportationChange of Address
If you are moving to Connecticut, complete the process to change your address.