California Code, Government Code - GOV § 7500.5

(a) This section shall only apply to the City of San Diego.

(b) For the purposes of this section, the following definitions shall apply:

(c) A local public employer shall provide coverage under the federal system to all employees who are not covered under a defined benefit plan.

(d) The requirements of this section shall not apply with regard to replacing or changing an employer's defined contribution plan that was in place on July 1, 2012, unless the defined contribution plan will replace or change the employer's existing defined benefit plan.