The unused balance of any amount heretofore or hereafter authorized or appropriated by the Legislature for any public building to be acquired or constructed pursuant to this part which the Director of Finance, with the approval of the board, determines is not required for the building for which it was authorized or appropriated may be transferred on order of the Director of Finance to and in augmentation of any authorization or appropriation made for any other building or buildings under this part and is hereby authorized or appropriated, as the case may be,
for the acquisition or construction of any other building or buildings authorized under this part.
This section does not apply to amounts authorized or appropriated for acquisition or construction of buildings authorized by Chapter 1072 of the Statutes of 1957 or buildings subject to subdivision (f) of Section 70379.