Code of Massachusetts Regulations
540 CMR - REGISTRY OF MOTOR VEHICLES
Title 540 CMR 13.00 - International Registration Plan implementation regulations
Section 13.03 - Impact on Reciprocity Agreements

(1) The Plan is the registration reciprocity agreement applicable to all apportionable vehicles notwithstanding the existence of any prior reciprocity agreements or arrangements between the Commonwealth and any other state or Canadian province. To the extent a conflict exists between the provisions of any such other reciprocity agreements or arrangements, or any provision of M.G.L. c. 90 dealing with the registration of vehicles or the operation on the ways of the Commonwealth of vehicles registered in other Plan member jurisdictions, the terms of the Plan shall prevail.