21 U.S. Code § 1543 - Membership
(a) In general
The President shall appoint 11 members to the Advisory Commission as follows:
(1) four members shall be appointed from the general public and shall include leaders—
(2) four members shall be appointed from the leading representatives of national substance abuse reduction organizations, of which no fewer than three members shall have extensive training or experience in drug prevention.
The Advisory Commission shall elect a chairperson or co-chairpersons from among its members.