The department received an estimated 100,000 comments during a public comment period that ended Aug. 8. Interior officials are now examining the submissions before announcing a final decision.
Ban would hold in some parks
Under the proposed new rule, the ban would be lifted only in national parks and wildlife refuges located in states that permit concealed weapons in their own state parks.
Although 48 states have enacted concealed gun permit procedures, only 24 of them currently allow concealed guns in state parks.
Those states are: Alaska, Arizona, Arkansas, Colorado, Connecticut, Florida, Indiana, Kansas, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Hampshire, Ohio, Oregon, South Carolina, Utah, Vermont, Virginia, Washington, and Wyoming.