California Code, Elections Code - ELEC § 19242

(a) The Secretary of State shall adopt and publish rules and regulations governing any voting technology and systems used by the state or any political subdivision that provide voters with disabilities the access required under the federal Help America Vote Act of 2002 (52 U.S.C. Sec. 20901 et seq.).

(b) At each polling place, at least one voting unit certified or conditionally approved by the Secretary of State shall provide voters with disabilities the access required under the federal Help America Vote Act of 2002 (52 U.S.C. Sec. 20901 et seq.).

(c) A local agency is not required to comply with subdivision (b) in an election in which a candidate for federal office does not appear on the ballot unless sufficient funds are available to implement that provision.  Funds received from the proceeds of the Voting Modernization Bond Act of 2002 (Article 5 (commencing with Section 19250)), from federal funds made available to purchase new voting systems, or from any other source except the General Fund, shall be used for that purpose.