Cal. Fish & Game Code § 3701

All funds derived from the sale of state duck hunting validations and state duck stamps, and related items authorized by subdivision (e) of Section 3700 or subdivision (g) of Section 3700.2, shall be deposited in the State Duck Stamp Account in the Fish and Game Preservation Fund to permit separate accountability for the receipt and expenditure of these funds. An amount not to exceed 6 percent of the amount annually deposited in the account may be used for administrative overhead related to the use of those funds and for implementation of the federal Migratory Bird Harvest Program.