Charles:
Go to the website.
Then enter a zip code. Find a restaurant. Click on it. Then note gift certificate near the top of the page.
There you will find the rules the establishment has determined for the use of the certificates.
I checked Monmouth County area of NJ...came up with the first one, and under the rules, it said:
Gift Certificate Restaurant Logo
This Gift Certificate entitles you to
$25 OFF the food portion of your bill.
ANNA'S ITALIAN KITCHEN GIFT CERTIFICATE RESTRICTIONS
• Valid for dine in dinner w/ min food purch of $35. Valid before 6:30pm Fri-Sat and after 6pm on Sun
TERMS AND CONDITIONS
• Limit one (1) redemption per party, per month, per restaurant.
• Limit one (1) gift certificate per redemption. Only one gift certificate can be used per party, even if the party is seated at separate tables and/or receives more than one check.
• Use of gift certificates for alcoholic beverages is at the sole discretion of the merchant.
• Merchant agrees to comply with all state laws pertaining to the same.
• Gift certificates cannot be combined with any other restaurant certificates, third party certificates, coupons, or promotions.
• Gift certificates cannot be used for taxes, tips or prior balances.
• No cash value for gift certificates.
• No cash back upon redemption or at any other time.
• Valid for parties of two (2) or more unless otherwise stated.
• Valid for dine in only unless otherwise stated.
• The issuing of restaurant credit is at the sole discretion of the merchant unless otherwise required by law.
• Neither the seller nor the merchant is responsible for lost or stolen certificates or restaurant certificates reference numbers.
• Reproduction, sale or trade of this gift certificate is prohibited unless done so in compliance with the law.
• Any attempted redemption not consistent with these terms and conditions will render the restaurant certificate void.
• Void to the extent prohibited by law.
• Gift Certificates can be exchanged for Restaurant.com Gift Certificates within 90 days of purchase date. No cash back on gift certificates.
• Expires one (1) year from date of issue, except in California and where otherwise prohibited by law.