California Education Code Section 24214

(a) A member retired for service under this part may perform the activities identified in subdivision (a) or (b) of Section 22119.5 as an employee of an employer, as an employee of a third party, or as an independent contractor within the California public school system, but the member may not make contributions to the retirement fund or accrue service credit based on compensation earned from that service. The employer shall maintain accurate records of the earnings of the retired member and report those earnings monthly to the system and retired member as described in Section 22461. (b) If a member is retired for service under this part, the rate of pay for service performed by that member as an employee of the employer, as an employee of a third party, or as an independent contractor within the California public school system may not be less than the minimum, nor exceed that paid by the employer to other employees performing comparable duties. (c) A member retired for service under this part may not be required to reinstate for performing the activities identified in subdivision (a) or (b) of Section 22119.5 as an employee of an employer, as an employee of a third party, or as an independent contractor within the California public school system. (d) A member retired for service under this part may earn compensation for performing activities identified in subdivision (a) or (b) of Section 22119.5 in any one school year up to the limitation specified in subdivision (f) as an employee of an employer, as an employee of a third party, or an independent contractor, within the California public school system, without a reduction in his or her retirement allowance. (e) The postretirement compensation limitation provisions set forth in this section are not applicable to compensation earned for the performance of the activities described in subdivision (a) for which the employer is not eligible to receive state apportionment or to compensation that is not creditable pursuant to Section 22119.2. (f) The limitation that shall apply to the compensation for performance of the activities identified in subdivision (a) or (b) of Section 22119.5 by a member retired for service under this part either as an employee of an employer, an employee of a third party, or as an independent contractor shall, in any one school year, be an amount calculated by the board each July 1 equal to twenty-two thousand dollars ($22,000) adjusted by the percentage change in the average compensation earnable of active members of the Defined Benefit Program, as determined by the system, from the 1998-99 fiscal year to the fiscal year ending in the previous calendar year. (g) If a member retired for service under this part earns compensation for performing activities identified in subdivision (a) or (b) of Section 22119.5 in excess of the limitation specified in subdivision (f), as an employee of an employer, as an employee of a third party, or as an independent contractor, within the California public school system, the member`s retirement allowance shall be reduced by the amount of the excess compensation. The amount of the reduction may be equal to the monthly allowance payable but may not exceed the amount of the annual allowance payable under this part for the fiscal year in which the excess compensation was earned. (h) The language of this section derived from the amendments to the section of this number added by Chapter 394 of the Statutes of 1995, enacted during the 1995-96 Regular Session, is deemed to have become operative on July 1, 1996. (i) This section shall become operative on July 1, 2010.