N.J. Stat. § 56:8-2.30: Posting of raincheck policy by retail mercantile establishment.

3. Every retail mercantile establishment which issues rainchecks to consumers for the sale of advertised merchandise that is not available throughout the advertised period shall conspicuously post its raincheck policy on a sign in at least one of the following locations:

a. Affixed to a cash register or location of the point of sale;

b. So situated as to be clearly visible to the buyer;

c. Posted at each store entrance used by the public;

d. At the location where the merchandise was offered for sale;

e. In an advertisement for merchandise; or

f. Printed on the receipt of sale.

L.2006,c.59,s.3.