California Code, Elections Code - ELEC § 19231

(a) If the Secretary of State has reason to believe that a local inspection of equipment is not adequate, he or she may cause the equipment to be reexamined, at any time prior to six months before a statewide election, to ensure that the voting system or parts of the voting system perform to adopted standards and tabulate votes accurately.

(b) For the purpose of reexamining voting equipment, the Secretary of State may use state-approved testing agencies or expert technicians at the cost of the elections official.

(c) The Secretary of State shall furnish a complete report of the findings to the Governor, to the Attorney General, to each county elections official, to the chairpersons of the elections committees of the Assembly and Senate, and to the manufacturer of the equipment.