Acquisition of land for, or construction of, all public works projects, by the State of California and state agencies, with a total budget in excess of five million dollars ($5,000,000) which will cause irreversible modification of the zone are hereby deferred until the 61st day after the final adjournment of the 1972 Regular Session of the Legislature. The provisions of this section shall not apply to districts, agencies, or other governmental entities not primarily supported by an annual appropriation of state funds. All the following projects are excluded from the deferment provided by this section: