Birmingham LUG does not operate a formal “membership” system, we don’t have a committee and the “group” has no money. Everything works by mutual consent and decisions (such as they are) will usually be taken by people who come to the meetings and on the basis that somebody is willing to do something.
So if you want to join, just turn up for a meeting, join the mailing list, Facebook group or Meetup page and we’ll consider you a member.
If you live in Alabama, USA, you probably want the Birmingham Area Linux User group, who can be found here: https://www.bham-lug.org/