A copied State instrument for a transferring employee cannot be varied except under:
(a) section 768AX; or
(b) item 20 of Schedule 3A to the Transitional Act (which deals with variation of discriminatory instruments) as that item has effect because of section 768BY; or
(c) item 20 of Schedule 9 to the Transitional Act (which deals with variation of instruments in annual wage reviews) as that item has effect because of section 768BY; or
(d) Division 4 of Part 3 of Schedule 11 to the Transitional Act (which deals with transfer of business) as that Division has effect because of section 768BY.