New Jersey Statutes Title 56. Trade Names, Trade-Marks and Unfair Trade Practices 56 § 8-108

(1) The price exceeds by more than 10 percent the price at which the good or service was sold or offered for sale by the seller in the usual course of business immediately prior to the state of emergency, unless the price charged by the seller is attributable to additional costs imposed by the seller's supplier or other costs of providing the good or service during the state of emergency;

(2) In those situations where the increase in price is attributable to additional costs imposed by the seller's supplier or additional costs of providing the good or service during the state of emergency, the price represents an increase of more than 10 percent in the amount of markup from cost, compared to the markup customarily applied by the seller in the usual course of business immediately prior to the state of emergency.

“State of emergency” means a natural or man-made disaster or emergency for which a state of emergency has been declared by the President of the United States or the Governor, or for which a state of emergency has been declared by a municipal emergency management coordinator.