New Jersey Statutes Title 52. State Government, Departments and Officers 52 § 27D-123.20

a. A newly constructed townhouse subject to the one-and two-family dwelling subcode, adopted by the Commissioner of Community Affairs pursuant to section 5 of P.L.1975, c. 217 (C.52:27D-123), adopted as N.J.A.C.5:23-3.21, or succeeding subcode, for which an application for a construction permit has not been declared complete by the enforcing agency before the first day of the seventh month next following the date of enactment of P.L.2023, c. 265 (C.52:27D-123.20),  1 shall be installed with an automatic fire sprinkler system.

b. On or before the first day of the fifth month next following the date of enactment of P.L.2023, c. 265 (C.52:27D-123.20), the Commissioner of Community Affairs shall adopt, pursuant to section 5 of the “State Uniform Construction Code Act,” P.L.1975, c. 217 (C.52:27D-123) and the “Administrative Procedure Act,” P.L.1968, c. 410 (C.52:14B-1 et seq.), rules and regulations to amend and supplement, as necessary, the one- and two-family dwelling subcode, and any other necessary components of the State Uniform Construction Code, to establish standards for the design and construction of townhouses to comply with P.L.2023, c. 265 (C.52:27D-123.20). The rules and regulations shall incorporate the provisions of the 2021 International Residential Code, Section R313.1, or any successor model code, for the installation of an automatic fire sprinkler systems.

c. As used in this section:

“Automatic fire sprinkler system” means an integrated system of underground and overhead piping designed in accordance with fire protection engineering standards and shall include a suitable water supply. The portion of the system above the ground is a network of specially sized or hydraulically designed piping installed in a structure or area, generally overhead, and to which automatic sprinklers are connected in a systematic pattern. The system is generally activated by heat from a fire and discharges water over the fire area.

“Townhouse” means a single-family dwelling unit constructed in a group of three or more attached units in which each unit extends from foundation to roof and with a yard or public way on not less than two sides.