(a) In the event that any member of the Board ceases to work for or be affiliated with the category of members from which the member was appointed to the Board, such position shall automatically become vacant.

(b) If a member of the Board consistently refuses to perform the duties of a member of the Board, or if a member of the Board engages in acts of dishonesty or willful misconduct, the Board may recommend to the Secretary that the member be removed from office. If the Secretary finds the recommendation of the Board shows adequate cause, the Secretary shall remove such member from office.

(c) Without recommendation of the Board, a member may be removed by the Secretary upon showing of adequate cause, including the continued failure by a member to submit reports or remit assessments required under this part, if the Secretary determines that such member's continued service would be detrimental to the achievement of the purposes of the Act.

(d) Should the position of a member become vacant, successors for the unexpired terms of such member shall be appointed in the manner specified in §§ 1223.40 and 1223.41, except that said nomination and replacement shall not be required if said unexpired terms are less than six months.