The bill's backers say that the CBP is often hampered or slowed in its efforts to monitor and patrol federal borderlands, specifically along the southwestern border, because it must get clearance for many of those activities. Its opponents, which include high-ranking officials in both the Department of Homeland Security and the Department of the Interior, say the CBP doesn't need such an overarching policy change.
http://www.outsideonline.com/blog/outdoor-adventure/politics/house-bill-would-lift-environmental-laws-allow-road-building-in-wilderness.html