The commissioner shall keep a record of all of his official acts and shall preserve copies of all rules, regulations, decisions and orders made by him. Copies of any rule, regulation, decision or order made by him or of any paper or papers filed in any office maintained by him in the administration of this act may be authenticated under his official seal, and when so authenticated shall be evidence in all courts of this State of the same weight and force as the originals thereof. For authenticating any such copy the commissioner shall be paid a fee of one dollar ($1.00).
N.J.S. § 56:6-13