Nomination papers are available at the town clerk’s office at Town Hall for the May 21 annual town election. To be included on the ballot, a candidate must collect at least 50 signatures of registered voters and submit them to the town clerk’s office before 5 p.m. on April 2. This year, residents will vote for two selectmen, two School Committee members, a member of the Housing Authority, and the town moderator. So far, three candidates have taken out and returned nomination papers: School Committee incumbent Sean Gresh, School Committee challenger Sarah Player, and incumbent town moderator Tom Murphy. The last day to register to vote is April 24.