NJ law re TH Sprinklers

December 12, 2025by Kevin McGrail

A New Jersey law requires all new townhouses subject to the one- and two-family dwelling subcode to have an automatic sprinkler system installed. The mandatory effective date of the law is February 1, 2025, and it is not subject to a 6-month grace period.

For additional information refer to the Spring 2025 edition of the Construction Code Communicator available at New Jersey’s Department of Community Affairs website.

Kevin McGrail

COMMISSION

Main Office

505 Huntmar Park Drive, Ste. 210, Herndon, VA 20170(703) 481-2022

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New Jersey

Department of Community Affairs

Division of Codes & Standards


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North Dakota

Department of Commerce

Division of Community Services

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Minnesota

Department of Labor & Industry

Construction Codes and Licensing Division