N.J. Stat. Ann. § 45:22A-46.12

10. All development approvals for a development that changes from age-restricted to non-restricted status pursuant to P.L.2009, c.82 (C.45:22A-46.3 et seq.) shall be deemed vested in accordance with the "Municipal Land Use Law," P.L.1975, c.291 (C.40:55D-1 et seq.), and extended as permitted under the "Permit Extension Act of 2008," P.L.2008, c.78 (C.40:55D-136.1 et seq.). In the case of a prior approval that was not extended as permitted under the "Permit Extension Act of 2008," the period of vesting and protection shall not be less than 24 months from the date of approval of the application to change to a non-restricted status.