We are a local IAABO board.
We vote for next year's officers at the end of the current year (we'll be having this "annual meeting" in a week and a half). The new officers start their duties at the end of the "annual meeting", with their first real duty to preside at the annual end of the year banquet (which had already been planned by the outgoing officers).
New (first year cadets) officials do not vote (although, for insurance purposes, they are considered members by IAABO International).
If you paid your annual dues (back in March, 2017), even if you didn't actively officiate in 2017-18, you can vote for officers.
If an official has any non-IAABO gap, he must go through the rules, and mechanics, classes, and pass both tests, starting as a cadet (do not vote), but he will be observed immediately and be given appropriate game assignments.
Officials from another IAABO board (local, state, or international) transfer smoothly with no restrictions (getting game assignments the same as their previous IAABO board). I believe that they have full voting privileges.