N.J. Stat. § 21:2-27
The owner or operator of any fireworks plant, within sixty days after demand therefor in writing by the commissioner of labor, unless exempted therefrom as hereinafter provided, shall file and keep on file with the department of banking and insurance of the state, an indemnity bond payable to the state of New Jersey in such sums as may be determined by the commissioner of labor and set forth in such demand, not in excess of fifty thousand dollars nor less than ten thousand dollars, with surety or sureties satisfactory to such department, conditioned for the payment of all final judgments that may be rendered against such owner or operator for damages caused to persons and property by reason of any explosion at such fireworks plant of the product or component part or parts thereof there manufactured, processed or handled.
N.J.S. § 21:2-27