For local budget years beginning on or after July 1, 2004 municipalities and counties shall be prohibited from increasing their final appropriations by more than 2.5% or the cost-of-living adjustment, whichever is less, over the previous year, except within the provisions set forth hereunder.
For the purpose of this section, in computing its final appropriations for the previous year, a municipality or county shall include, as part of its final appropriations:
For the 1991 local budget year, the final appropriations from the prior year shall be the total appropriations for the 1990 budget year. In each local budget year in which any service, function, or portion thereof, is transferred to, or assumed by, the State or federal government from a municipal government, the municipality shall deduct from its final appropriations upon which its permissible expenditures are calculated the amount which the municipality expended for that service or function during the last full budget year, or portion thereof, throughout which the service or function so transferred was funded from appropriations in the municipal budget.
In each budget year subsequent to 1990, whenever any municipality shall have transferred to any local public utility, any local public authority or any special purposes district, during the immediately preceding budget year, or at any time during the current budget year prior to the final adoption of the budget, any service or function funded during the immediately preceding budget year, either partially or wholly, from appropriations in the municipal budget, the municipality shall deduct from its final appropriations upon which its permissible expenditures are calculated pursuant to this section the amount which the municipality expended for that service or function during the last full budget year throughout which the service or function so transferred was funded from appropriations in the municipal budget.
N.J.S. § 40A:4-45.2