California Code, Government Code - GOV § 17206

Whenever a registered warrant is issued for the purpose of making an interdepartmental payment or in error the State agency having legal ownership of the warrant may present it to the Controller for cancellation and credit to the fund on which it was drawn. The warrant shall be accompanied by a report in writing requesting the cancellation, explaining the reason for the request and specifying the proper appropriation to be credited with the amount of the warrant.