Conn. Gen. Stat. § 12-57
Sec. 12-57. Certificates of correction. Application for refund.
(b) When it has been determined by the assessors of a municipality, at any time, that a motor vehicle registered with the Department of Motor Vehicles has been assessed when it should not have been, the assessors shall issue a certificate of correction removing such vehicle from the list of the person who was assessed in error, and, if such vehicle should have been subject to taxation for the same taxing period on the grand list of another municipality in this state, the assessors shall promptly notify, in writing, the assessors of the municipality where the vehicle should be properly assessed and taxed, and the assessors of such municipality shall assess such vehicle and shall thereupon issue a certificate of correction adding such vehicle to the list of the person owning such vehicle, and the tax thereon shall be levied and collected by the tax collector. Upon the issuance of a certificate of correction, any person taxed in error may make application in writing to the tax collector for the refund of the erroneously collected amount pursuant to section 12-129 .
See Sec. 12-126 re abatement or refund of tax on tangible personal property assessed in more than one municipality.
Cited. 195 C. 587; 200 C. 697, 711; 212 C. 639.