Cal. Government Code § 31527

In its regulations, the board may include the following provisions: (a) From what warrants deductions of members’ contributions shall be made. (b) For a period of time longer than one year during which a member may redeposit in the retirement fund an amount equal to all of the accumulated normal contributions that he or she has withdrawn, plus regular interest thereon from the date of return to service. (c) For a period of time longer than one year during which a member brought within the field of membership may pay into the retirement fund the amount equal to the contributions he or she would have made plus interest, if he or she had been a member from the date of its organization, or from the date of his or her entrance into service, whichever is later. (d) For a withdrawal charge against a member who withdraws his or her accumulated contributions. The withdrawal charge shall not exceed the interest credited to the member subsequent to the effective date of the regulation. (e) For the exemption or exclusion from membership as a peace officer member or as a safety member or from membership altogether, in the discretion of the board, of persons whose tenure is temporary, seasonal, intermittent, or for part time only, or persons whose compensation is fixed at a rate by the day or hour. (f) For the periodic physical examination, at county expense, of safety members. (g) The amount of additional deductions from the salaries or wages of members pursuant to Article 15.5 (commencing with Section 31841) or Article 16 (commencing with Section 31861). Such a provision may be adopted in anticipation of, and prior to Article 15.5 (commencing with Section 31841) or Article 16 (commencing with Section 31861) becoming operative in the particular county. (h) The day upon which each person becomes a member of the association if it is to be other than the first day of the calendar month after his or her entrance into service. However, that day shall be no later than 12 weeks after his or her entrance into service, or the day upon which the member terminates service credited by the association, and that the day shall be no earlier than 12 weeks prior to the member’s termination from employment. (i) Notwithstanding any other law, for the use and acceptance of a document requiring a signature that is submitted by a member using an electronic signature, if the document and electronic signature are submitted using technology the board deems sufficient to ensure its integrity, security, and authenticity. A document submitted pursuant to the regulation shall be given the same force as a signed, valid original document. (j) For the use of recorded telephone communications for the processing of authorized transactions affecting a member’s account, if the board approves procedures adequate to protect the member and the system. These procedures shall include adequate validation and authentication of member identity and permanent retention of recorded communication.