Registration follows principal use
The state where the boat is primarily used or stored is the state that registers it — not where it was bought and not always where you live. Establishing principal use in a new state triggers re-registration.
Answer Hub
Do I need new decals when I move states?
Yes, in almost every case. Boats are registered in the state of principal use, so a move means a new registration number, a new prefix, and a new set of decals — usually within 30 to 90 days.
Reviewed August 22, 2026
The prefix changes too
Prefixes are not always the postal code. Washington issues WN and California issues CF, for example, so a move can change the shape of the number as well as the digits.
Remove the old number
Most states prohibit any other number on the forward half of the hull, so the previous state's number must come off or be fully covered before the new set goes on. Warm the old vinyl with a heat gun on low and peel at a shallow angle.
Timeline
Typical windows run 30 to 90 days from bringing the boat into the state. Check your new state's guide for its own deadline before you launch.
Prefix examples by state
Assigned-number examples from each state's own material — note where the prefix is not the postal code.
| State | Published wording | Agency |
|---|---|---|
| Washington | WN 1234 ZZ | Washington State Department of Licensing |
| California | CF 1234 AB | California Department of Motor Vehicles |
| Texas | TX 1234 AB | Texas Parks and Wildlife Department |
| Florida | FL 1234 AB | Florida Highway Safety and Motor Vehicles |
| Michigan | MC 1234 AB | Michigan Secretary of State / Michigan DNR |
| Wisconsin | WS 9999 ZZ | Wisconsin Department of Natural Resources |
| Minnesota | MN 1234 AB | Minnesota Department of Natural Resources |
| North Carolina | NC 1234 AB | North Carolina Wildlife Resources Commission |
| South Carolina | SC 3717 ZW | South Carolina Department of Natural Resources |
| Georgia | GA 3717 ZW | Georgia Department of Natural Resources / Law Enforcement Division |
Rules change. Confirm with your state agency before ordering, and see the full 48-state requirement guide.
Related questions
Can I keep my old state numbers as a backup?
No. Once registered in a new state the old number is invalid and must be removed or fully covered.
What if I only boat in another state seasonally?
You generally register in the state of principal use. Many states honor a visiting boat's valid out-of-state registration for a limited period.
Do I need new decals if the boat stays registered in my old state?
No. If the registration remains valid and current, the existing number stays.
Keep reading
Ready to order your registration numbers?
The designer lays out a true 3-inch plain block set with correct spacing, cut from six-year marine vinyl and shipped ready to apply.
Official sources
Editorial review date: August 22, 2026. We publish state-specific rules only where an official agency source confirms them.