(a) Six members of the committee shall be necessary to constitute a quorum and the same number of concurring votes shall be required to pass any motion or approve any committee action.

(b) If both a member and respective alternate are unable to attend a committee meeting, the committee may designate any other alternate present from the same district to serve in place of the absent member.

(c) The committee may provide for meeting by telephone, telegraph, or other means of communication, and any vote cast at such a meeting shall be promptly confirmed in writing: Provided, That if any assembled meeting is held, all votes shall be cast in person.