Several hundred voters may be wondering why they received a yellow election form this year from the Wilton registrars of voters. It could be because they moved within Wilton or had their mail forwarded to an out-of-town address. Each spring, registrars Carole Young-Kleinfeld and Tina Gardner review a year-long report of notifications from the U.S. Postal Service\u2019s National Change of Address database to make sure Wilton\u2019s official voter list is up-to-date and accurate. This annual canvass of voters \u2014 required by state law \u2014 entails weeks of research and documentation before official \u201cConfirmation of Voter Residence\u201d letters of inquiry are sent to\u00a0 voters. \u201cWe mailed Confirmation of Voter Residence letters to voters two weeks ago,\u201d said Republican Registrar Tina Gardner. \u201cVoters who receive these inquiries should verify their residency within 30 days by pre-paid return mail to avoid changes in their voting status.\u201d Democratic Registrar Carole Young-Kleinfeld said many Wilton residents make temporary changes to their addresses \u2014 to escape New England winters or to receive their mail at college. \u201cThe last thing we want to do is to jeopardize someone\u2019s right to vote based on incorrect information,\u201d she said. \u201cWe urge voters to use the self-addressed stamped envelope to clarify their bona fide residence.\u201d For more information, email firstname.lastname@example.org or call 203-563-0111 at town hall. The office is open daily from 8:30 to 4:30.