Pretty much the same answer as @hikermor. Some National Parks in the west, Shenandoah National Park in the east, and Adirondack State Park in New York require certified products and usually list those products on their web sites. Check with authorities related to the location you are heading. If specific products are not required, a bear hang would not get you in trouble with authorities. Bears are another story.
one or more gifts or other benefits from the co-op.