California Code, Public Resources Code - PRC § 5305

The legislative body of the city or city and county may, by ordinance or in such manner as other municipal legislative acts are enacted by it, call an election and submit to the qualified electors of the municipality a proposition to issue bonds of the municipality, to a specified amount, the proceeds to be applied exclusively to the acquisition, maintenance, and improvement of its public parks, or boulevards, or both. The election shall be conducted, and the result determined substantially as are other local municipal elections of the municipality in which it is held.