253.27. Every municipal corporation whose roll is a three-year roll may provide for the averaging, in accordance with this division, of the variation in the taxable values resulting from the coming into force of the roll.
A resolution shall be adopted after the deposit of the roll and before the adoption of the budget for the first fiscal year for which it applies. If a resolution is adopted, it shall apply, both to the real estate assessment roll and to the roll of rental values of the corporation and to taxes based on the taxable values entered on both rolls.
The resolution has effect for the purposes of the fiscal years for which the roll referred to in the said resolution applies. In no case may the resolution be repealed after the adoption of the budget of the first of those fiscal years.
In the case of a municipal corporation forming part of a community, or of a municipal corporation other than a municipality forming part of a community and having a population of 5 000 or over, the averaging applies by operation of law for the purposes of the fiscal years for which any three-year roll coming into force on or after 1 January 1991.