For the UFCW Local 1000 bargaining unit, two. (I think it should be tied to store size: 300 associates may need more reps than do 80.)
For how, get in touch with your business agent, the next level up from steward, and a position that is paid for union work. Just your interest and motivation will mean a lot. Contract knowledge is very useful, as is a desire to better your work environment and help your fellow associates by holding management accountable.
