Ala. Code § 22-51-9
The board of directors shall hold monthly meetings and such special meetings as may be called, from time to time, on at least two days' notice given by the chairman or by any three members thereof, said notice to be given to each member thereof; provided, that where the board of directors exceeds 16 members, the executive committee shall meet at least monthly and the complete board of directors shall meet at least every six months. The said board shall adopt a constitution and bylaws, to be subject to this chapter, the certificate of incorporation and laws of the State of Alabama. Three members of the said board shall constitute a quorum for the transaction of business. A copy of the constitution and bylaws shall also be filed with the Alabama Department of Mental Health.
Ala. Code § 22-51-9 (1975)