N.J. Stat. § 34:11-56.30
The commissioner shall determine the prevailing wage rate and forthwith shall establish the prevailing wage in the locality in which the public work is to be performed for each craft or trade or classification of all workmen needed to perform public work contracts. The prevailing wage shall be determined and computed in accordance with rules and regulations issued by the commissioner as may be required to carry out the provisions of this act; provided, however, that employer contributions for employee benefits pursuant to a then existing bona fide collective bargaining agreement shall be considered an integral part of the wage rate paid by employers of any craft or trade in the locality under consideration for the purpose of determining the prevailing wage under this act. Said wage determination shall be conclusive for a period of 2 years from date of issuance unless superseded within said 2-year period by a later determination. The commissioner shall forthwith announce all said determinations and give notice by mail of all determinations of prevailing wage rates made pursuant to this section to any representative of any craft or trade, any employer, or any representative of any group of employers who shall in writing request the commissioner so to do.
N.J.S. § 34:11-56.30