Morris County Library > Reference > Construction codes


NJ Construction & Fire Codes

Legislative history
New Jersey Uniform Construction Code is comprised of subcodes (model codes and standards) that are adopted individually by the Commissioner of Community Affairs and which are often supplemented or extensively amended by the Uniform Construction Code Regulations (New Jersey Administrative Code [N.J.A.C.] 5:23-1 et seq.) which went into effect on January 1, 1977. The subcodes are the basic "nuts & bolts" manuals on how construction is to be done and are usually published by national technical organizations, e.g. BOCA. Those formulated by the State, such as the Rehabilitation Subcode, often cite other standards (ANSI, NFPA) and even federal regulations, e.g. for manufactured homes, to address specific situations. Patrons must consult N.J.A.C. 5:23-1 et seq. to identify not only the subcode/standard that applies but also the additions, deletions, or exceptions that the State has made to those subcodes/standards.

The N.J.A.C. regulations may change at any time. Newer model subcodes are periodically adopted but the process has become very irregular. The most recently published national/international model code may not yet have been adopted by the State. The International Code Council sells the latest codes NJ has adopted. MCL has these and a collection of older codes adopted in NJ, which can be invaluable information for people with homes built/remodeled in the past.

Municipal codes
Local ordinances (fences, sewer hookups, swimming pools, etc) may affect some construction projects. Many municipal codes are online. Current editions of local ordinances are also available in municipal offices. Contact your local Construction Official or Building Inspector if you have questions about permits and code. NJ Municipal Construction Code Officials, roster.

NJ Division of Codes and Standards . Administers the New Jersey Uniform Construction Code; their web page includes