The Gosar amendment, modeled after the Recreational Lands Self-Defense Act (H.R. 1865) introduced by pro-gun Rep. Bob Gibbs (R-OH), is similar to a 2009 law repealing the gun ban on National Park Service land. Army Corps of Engineers land was not part of that bill, something the Corps was quick to point out after that law took affect.
The Corps said, in a statement: “Public Law 111-024 does not apply to Corps projects or facilities . . . [and the Army Corps] will continue to prohibit loaded concealed weapons on Corps properties regardless of the new law and notwithstanding any contrary provisions of state law.” -GunOwners.Org.