N.J. Stat. § 54:4-6
The county board of taxation shall by rule prescribe how the remission or rebate provided for in section 54:4-5 of this title shall be paid or credited to the collector of the taxing district by the county treasurer and how his proportionate part shall be returned or credited to each taxpayer. Where a remission or rebate provided for in section 54:4-5 of this title is for more than one year, the county board of taxation shall phase in and distribute the remission or rebate in the annual amounts and over the same number of years for which the remission or rebate is awarded. A municipality to which a remission or rebate is to be paid shall not receive any remission or rebate in any year during the phase in period greater than the amount to which it was entitled in the corresponding year of its eligibility for the remission or rebate.
N.J.S. § 54:4-6