From this story in the Pittsburgh Tribune-Review:
Everyone knows, or should know, that leaving trash behind when you go on an outing is a surefire way to lose access to private grounds and even mar public ones. But a new campaign has been launched to reinforce that point, and make sure shooters in particular minimize their impacts on the environment. The nonprofit group Tread Lightly! has released a series of nine tips designed to help shooters leave a smaller footprint. The campaign is called “Respected Access is Open Access.” Cooperating in promoting it are the National Wild Turkey Federation, National Shooting Sports Foundation, Safari Club International, Boone & Crockett Club, U.S. Forest Service and others. “The message of the campaign is simple: responsible behavior leads to continued access,” said Lori McCullough, executive director of Tread Lightly! “Outdoor opportunities in America are dwindling at a rate so serious it demands our immediate action. Damage caused by a few uninformed or uncaring recreationists is contributing to the loss of access for everyone. This campaign will help change that.”

The nine tips are: Target shoot only on lands open to shooting. Use only appropriate targets, rather than trees and other natural objects. Only shoot where there is a good backstop. Avoid shooting at signs, kiosks, trash containers, buildings and other property, which is illegal. Be sure to pack out your trash, including food wrappings, shotgun shells, brass or steel cases, fragmented clay pigeons, and other targets. Do not shoot household appliances or other objects dumped in shooting areas, as that can lead the public to assume that shooters are the dumpers. Avoid shooting across roads, trails, waterways or into caves or rocky areas, because that’s unsafe. Shoot away from developed recreation sites such as campgrounds, trailheads, parking areas and boat ramps. Travel on designated routes.

More information on the campaign, including decals and other details, can be found at