• May 1: Last day an elector may register to vote or make any changes to their voting record to be eligible for the municipal primary. It must be received in the board of elections offices of Lehigh and Northampton counties by 4 p.m. No postmarks will be accepted.

• May 9: Last day, under certain conditions, to file applications for official absentee or mail-in ballots. Requests are due in to the boards of elections of Lehigh and Northampton counties by 5 p.m.

• May 16: Last day to submit official absentee and mail-in ballots to the boards of elections. They must be received by 8 p.m.

• May 16: Primary Election Day; voting is set for 7 a.m.-8 p.m.