Upon notice from the State Treasurer of the amount of excess in the "Surplus Revenue Fund" pursuant to section 8 of this act, there may be appropriated sums for any one or more of the following purposes:
a. To provide a reserve fund for retirement, purchase or discharge of outstanding general obligation bonds of the State of New Jersey;
b. To provide appropriations for capital projects;
c. To provide appropriations to reduce or offset real property taxes.