What to do with Connecticut plates after moving to Montana
The answer can be return, cancel, destroy, recycle, or keep. Follow the reviewed Connecticut instruction only after the Montana registration and insurance handoff are safe.
Complete the replacement record
Title and register the vehicle through the county treasurer within 60 days after establishing Montana residency.
Carry proof of Montana-compliant insurance while driving. Montana MVD says proof is not required to complete the registration transaction, but coverage remains required for operation.
Cancel the Connecticut registration before ending its insurance
After the vehicle is registered in the new state, cancel the Connecticut registration and save the plate-disposition receipt. Connecticut says insurance must remain while the registration is active.
Open the official Connecticut instructionReviewed 2026-07-31- 1. Activate acceptable destination coverage
Confirm the effective date with the new insurer.
- 2. Register in Montana
Keep the issued registration or official receipt.
- 3. Complete the Connecticut plate action
Keep the surrender, cancellation, mailing, destruction, or retention record the state provides.
- 4. End or rewrite the old policy
Ask the insurer to use dates that do not create an uncovered active registration.
Sources for this closeout sequence
- Connecticut DMV: Insurance and registration complianceChecked 2026-07-31 ↗InsuranceExit closeout
- Montana MVD: Vehicle registrationChecked 2026-07-31 ↗RegistrationTax / fees