Teams in the National Hockey League expect to divert more than 100 tons of potential food waste from landfills this season.

The league says all of its teams have worked with a program called “Rock and Wrap It Up!” to pack up all prepared, but untouched concession food on game nights for redistribution to local shelters.

Four teams, the Buffalo Sabres, New Jersey Devils, New York Islanders and New York Rangers, all have been recognized by the U.S. Environmental Protection Agency’s Region 2 for their work with the food diversion program.

EPA’s Region 5 in the Midwest also recently recognized the Chicago Blackhawks, Columbus Blue Jackets, Detroit Red Wings and Minnesota Wild.

The Rangers, Islanders, Devils and Sabres combined to divert 14 tons of food waste from reaching landfill while providing 21,000 meals to local food banks, the EPA said. The league-wide total is expected to exceed 105 tons for the season.