6. Section 22B of the Principal Act is amended—
(a) by omitting paragraph (1) (c) and substituting the following paragraph:
“(c) a parcel of land outside the City Area leased primarily for the purpose of primary production;”; and
(b) by omitting paragraph (1) (e) and substituting the following paragraph:
“(e) a parcel of land leased for development to the extent necessary to make the land suitable for subdivision into parcels of land to be leased;”.