Revenues received from this plan or any other activity involving the collection and sale of recyclable materials in state and legislative offices located in state-owned and state-leased buildings, such as the sale of waste materials through recycling programs operated by the California Integrated Waste Management Board or in agreement with the board, shall be deposited in the Integrated Waste Management Account in the Integrated Waste Management Fund and are hereby continuously appropriated to the board, without regard to fiscal years, until June 30, 1994, for the purposes of offsetting recycling program costs. On and after July 1, 1994, the funds in the Integrated Waste Management Account may be expended by the board, only upon appropriation by the Legislature, for the purpose of offsetting recycling program costs.