Pub. L. 109-115, div. A, tit. I, sec. 177

Sec. 177. Section 40128(e) of title 49, United States Code, is amended by adding at the end the following: “For purposes of this subsection, an air tour operator flying over the Hoover Dam in the Lake Mead National Recreation Area en route to the Grand Canyon National Park shall be deemed to be flying solely as a transportation route.”. Nothing in this provision shall allow exemption from overflight rules for the Grand Canyon.