The assessor shall alter the valuation roll to give effect to any alteration in the gross annual value of any lands and heritages or any other consequence of the repeal by this Act of section 8(1) of the M1Valuation and Rating (Scotland) Act 1956 (subjects excluded from the valuation roll), and section 3 of the M2Local Government (Scotland) Act 1975 (procedure following alteration of the valuation roll) shall apply to an alteration in the valuation roll under this section.

An alteration in the valuation roll under this section shall have effect as from 1st April 1979, or as from the beginning of the year in which it is made, whichever is the later.