N.J. Stat. § 43:3B-2
The monthly retirement allowance or pension originally granted to any retirant and the pension or survivorship benefit originally granted to any beneficiary shall be adjusted in accordance with the provisions of this act provided, however, that:
Pension adjustments shall not be paid to retirants or beneficiaries who are not receiving their regular, full, monthly retirement allowances, pensions or survivorship benefits. The adjustment granted under the provisions of this act shall be effective only on the first day of a month, shall be paid in monthly installments, and shall not be decreased, increased, revoked or repealed except as otherwise provided in this act. No adjustment shall be due to a retirant or a beneficiary unless it constitutes a payment for an entire month; provided, however, that an adjustment shall be payable for the entire month in which the retirant or beneficiary dies.
Commencing with the effective date of P.L. 2011, c. 78 and thereafter, no further adjustments to the monthly retirement allowance or pension originally granted to any retirant and the pension or survivorship benefit granted to any beneficiary shall be made in accordance with the provisions of P.L. 1958, c.143 (C.43:3B-1 et seq.), unless the adjustment is reactivated as permitted by law. This provision shall not reduce the monthly retirement benefit that a retirant or a beneficiary is receiving on the effective date of P.L. 2011, c. 78 when the benefit includes an adjustment granted prior to that effective date. The Board of Trustees of the Police and Firemen's Retirement System may adjust the monthly retirement allowance or pension of its retired members in accordance with subsection b. of section 13 of P.L. 1944, c.255 (C.43:16A-13).
N.J.S. § 43:3B-2