[Code of Federal Regulations] [Title 36, Volume 1] [Revised as of July 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 36CFR5.7] [Page 43] TITLE 36--PARKS, FORESTS, AND PUBLIC PROPERTY CHAPTER I--NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR PART 5_COMMERCIAL AND PRIVATE OPERATIONS--Table of Contents Sec. 5.7 Construction of buildings or other facilities. Constructing or attempting to construct a building, or other structure, boat dock, road, trail, path, or other way, telephone line, telegraph line, power line, or any other private or public utility, upon across, over, through, or under any park areas, except in accordance with the provisions of a valid permit, contract, or other written agreement with the United States, is prohibited.