AUGUSTA, Maine — Maine motor vehicle officials say the state is shifting to a new motorcycle registration system.

The changes are the result of a law enacted last year that requires motorcycle inspection stickers to be displayed on the vehicle’s registration plate.

The changes started in March and will be phased in over the next year. Inspection stickers will be placed in the plate’s upper-left corner.

In order to accommodate the inspection sticker, motorcycle registrations, with some exceptions, will be changed to a fixed March expiration.

Starting in April 2012, when a motorcycle is registered or renewed, the expiration date will be changed to expire in the next March. Owners will then be issued a combined month-year sticker, which should be placed in the upper-right corner.