Cal. Mil. & Vet. Code § 485.8
The revenue bond principal and interest payments and any premium payable upon revenue bonds called for redemption, and all payments required for reserve funds, sinking funds and all other funds and accounts created as further security for the revenue bonds constitute a first, direct, and exclusive charge and lien on all revenues of the purchase contracts and the interest or other income derived therefrom. Such revenues, together with any interest or other income earned thereon, and such funds and the interest and income earned thereon, constitute a trust fund for the security and payment of the revenue bonds and shall not be used or pledged for any other purpose or transferred to any other fund as long as any such revenue bonds are outstanding and unpaid.
Ca. Mil. and Vet. Code § 485.8