Utah Republican Gov. Spencer Cox signed a bill into law Wednesday that will phase out the state’s universal vote-by-mail system.

Under the new law, registered voters will have to opt in to receiving a mail-in ballot instead of automatically receiving one, starting in 2029. Voting rights advocates said it marks the first time a state has rolled back a universal mail-in voting policy.

Utah is one of eight states with a universal mail ballot system, and the only one of the group that is solidly…