Do I have to join a union?
Your agreement with the union may provide for one of the following:
(1) an open shop: there is no need to join or pay dues.
(2) an agency shop: you don't have to join, but you will have to pay the same dues as if you were a member.
(3) union shop: you do not have to be a union member prior to taking your job, but once accepted, you must join the union after a specified period of time.