(1) Subject to section 18515(2) and subsection (2), the Michigan board of social work is created in the department and consists of the following 9 voting members who meet the requirements of part 161:

    (a) Until July 1, 2004, 4 certified social workers and 2 social workers who meet the requirements of section 16135(2). Beginning July 1, 2004, 6 individuals engaged primarily in the practice of social work.

    (b) Three public members.

    (2) For board members appointed on or after July 1, 2004, the 6 members appointed that are primarily engaged in the practice of social work shall be licensed under this part by July 1, 2008.

    (3) The terms of office of the individual members of the board created under this section, except those appointed to fill vacancies, expire 4 years after appointment on December 31 of the year in which the term expires.