A committee may make rules and regulations providing:
(a) How officers of the committee may be removed.
(b) How meetings may be called, and any provisions so made shall supersede anything in this chapter to the contrary.
(c) Whether or not proxies may be used and the conditions under which they may be used.
Any rule adopted prior to statutory authorization by any committee by majority vote of the members elected to the committee is hereby validated and made of the same effect as if subsequently adopted.