New Jersey Statutes Title 56. Trade Names, Trade-Marks and Unfair Trade Practices 56 § 8-2.31

a. Honor or satisfy that raincheck within 60 days of issuance, unless an extension of such time period is agreed to by the holder of the raincheck, provided that if after a good faith effort a retail mercantile establishment cannot procure for the holder of the raincheck the advertised merchandise within the 60-day period, the retail mercantile establishment may offer the holder of the raincheck a different item of merchandise of substantially the same kind, quality and price of the original advertised merchandise; and

b. For all merchandise with an advertised price greater than $15 per unit, give written or telephonic notice to the holder of the raincheck when the merchandise is available and inform the holder of the raincheck that the advertised merchandise will be held for a period of no less than 10 days from the date of notification or to the end of the 60-day period for which the raincheck is valid, whichever is longer; and

c. Offer a raincheck to all customers who are unable, due to the unavailability of the merchandise, to purchase the advertised merchandise during the period of time that the merchandise has been advertised as available for sale.