(a) Four members of the Committee shall constitute a quorum, and four concurring votes shall be required to pass any motion or approve any Committee action, except that recommendations made pursuant to § 956.61 shall require five concurring votes.

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