New Jersey Statutes Title 34. Labor and Workmen's Compensation 34 § 13B-27

(a) It shall be the duty of each board of arbitration appointed pursuant to chapter forty-seven of the laws of one thousand nine hundred and forty-seven to make written findings of fact and to promulgate a written decision and order upon the issue or issues presented in each case and on the basis of the evidence in the record; provided, however, that such issue or issues shall have been in dispute between the parties; and provided further, that the board shall not render findings of fact, decision or order upon any issue or issues which are not proper subjects for collective bargaining for the reason that they do not pertain to wages, hours or conditions of employment.

(b) Where there is no contract between the parties, or where there is a contract but the parties are negotiating a new contract or amendments to the existing contract, and issues arise which are the subject of dispute between the parties in such negotiations, the board shall make a just and reasonable determination of the dispute, and in determining such issues, base its findings of fact, decision and order upon the following factors:

(c) The board shall not be bound by the strict rules of evidence applicable in a court of law.

(d) The findings of fact, decision and order of the board shall be made within thirty days after submission of the issues in dispute or within such additional period as may be agreed upon by a majority of the members of such board. The findings of fact, decision and order of such board shall forthwith be filed by such board with the Governor, and a copy of such findings of fact, decision and order shall be submitted to each of the parties to the dispute and another copy thereof filed with the State Board of Mediation.  1