(a) Except as otherwise provided under this part, “position subject to membership” means the following:

1. (1) A position at a county office of education or school district, not including a charter school, that the governing body of the employer has designated in a resolution adopted at a public meeting as a position subject to membership for which the employer requires the holding of a valid credential, license, or certificate authorized by the Commission on Teacher Credentialing or the State Department of Health Care Services. The resolution must be in effect on the date of hire in the position or be effective retroactively to include the position as of the date of hire, whichever is later, but no earlier than the operative date of this section as determined by subdivision (c).
2. (2) A position at a county office of education or school district, including a charter school, that is included in a certificated bargaining unit represented by an exclusive representative, whether by agreement between the exclusive representative and the employer as reflected in a collective bargaining agreement or by written decision of the Public Employment Relations Board. The collective bargaining agreement must be in effect on the date of hire in the position or be effective retroactively to include the position as of the date of hire, whichever is later, but no earlier than the operative date of this section as determined by subdivision (c).
3. (3) A position at a charter school eligible to receive state apportionment where the position requires the holding of a Commission on Teacher Credentialing certificate, permit, or other document pursuant to subdivision (l) of Section 47605.

4. (4) A position at a community college district, that is any of the following:

   1. (A) A faculty member, as defined in Section 87003, subject to the appropriate minimum standards adopted by the Board of Governors of the California Community Colleges pursuant to Section 87356.
   2. (B) An academic position, as defined in subdivision (b) of Section 87001, subject to the appropriate minimum standards adopted by the Board of Governors of the California Community Colleges pursuant to Section 87356.
   3. (C) An educational administrator, as defined in subdivision (b) of Section 87002, subject to the appropriate minimum standards adopted by the Board of Governors of the California Community Colleges pursuant to Section 87356.
   4. (D) A position pursuant to a contract with the United States Department of Defense to provide vocational training as an employee of a community college employer.
5. (5) A position as a superintendent of a California public school.
6. (6) A position that would otherwise be subject to membership in a different public retirement system when held by a member who has elected coverage by the Defined Benefit Program pursuant to Chapter 10 (commencing with Section 22500).

(b) “Position subject to membership” does not mean and shall not include:

1. (1) A position that would otherwise be subject to coverage by the Defined Benefit Program when held by a member of the Public Employees’ Retirement System who has elected coverage in the Public Employees’ Retirement System pursuant to Chapter 10 (commencing with Section 22500).
2. (2) A position that is not employed by an employer or employing agency as defined in Section 22131.
3. (3) A position at a county office of education or school district, including a charter school, that is included in a noncertificated bargaining unit represented by an exclusive representative, whether by agreement between the exclusive representative and the employer as reflected in a collective bargaining agreement in effect on the date of hire in the position or by written decision of the Public Employment Relations Board.

(c)

1. (1) The board shall determine a date based on when the system has the capacity to implement the changes made by the act that added this subdivision. The date determined by the board shall be posted on the internet website of the system no later than July 1, 2027.
2. (2) This section shall become operative on the date determined by the board pursuant to paragraph (1).