Back in July 12 2003, the AMA put out a set of Recommended guidelines for club bylaws.

Most clubs went with the suggestions verbatim concerning termination, expulsion..etc.

There was an error listed in the pdf that was corrected shortly afterward.

The original error was "2/3 vote of board of directors "for both expulsion and reinstatement.

The AmA has since then corrected it to say "2/3 vote of the membership"

Reason being its'much to easy for a board of directors usually numbering 5-9 members to gang up
on somebody they don't like vs getting 2/3s of the membership to go along with the linching.

The original was (incorrect version)listed as PDF 546, the new corrected version is listed as PDF 535-A