The voter registration deadline for Arizona's Special Election is next Monday, April 18. Those wishing to register to vote may contact the Pima County Recorder's Office at (520) 724-4330. Registered voters in Pima County may also request to be placed on the Permanent Early Voter List (PEVL) and automatically be mailed an Early Voting Ballot.
Information regarding the Special Election, including arguments for and against Propositions 123 and 124 can be found in the What's On My Ballot? - Arizona's Special Election Guide from the Office of the Secretary of State.