You can find out where to use "Dine Restaurant Redeem" coupons and codes by looking up participating venues on the restaurant.com website. According to the site, more than 18,000 restaurants participate in the program nationwide, with thousands of new ones added each month.
Whether you have a coupon code, e-gift card or physical card, the process for locating participating restaurants is the same. Go to the restaurant.com website and click the tab that says "Redeem a Code" in the upper left corner of the home page. A dialog box will open, and you'll be prompted to enter the gift code, along with the zip code where you want to dine. When you enter the information, the site will generate a list of venues where you can redeem the code.
Alternatively, you can click the "Find a Deal" tab, next to "Redeem a Code," to search for participating restaurants by zip code without entering a gift code. Clicking the search button generates a list of restaurants in or near the zip code of your choice. Additional options allow you to narrow your search by cuisine, or based on a range of distances from the original zip code. You can also download an app from the site that allows you to perform searches on your smart phone.