The voting laws for service members participating in this year’s election have underwent significant changes. One of the changes this year is that service members, including those deployed overseas, can only use the Federal Post Card Application and not state registration and absentee ballot application forms to register to vote. - The voting laws for service members participating in this year’s election have underwent significant changes. One of the changes this year is that service members, including those deployed overseas, can only use the Federal Post Card Application and not state registration and absentee ballot application forms to register to vote.