178. Where an alteration made under section 174 or 174.2 takes effect from a date preceding the coming into force of the roll, the assessor shall alter the roll in force on that date by means of a separate certificate.
Where the alteration of the preceding roll entails the entering of a new value, the value shall be determined according to Division II of Chapter V or V.1, as if the alteration had been made when the roll was in force.
1979, c. 72, s. 178; 1988, c. 76, s. 53; 1991, c. 32, s. 86; 1994, c. 30, s. 54.