[Code of Federal Regulations] [Title 36, Volume 1] [Revised as of July 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 36CFR18.9] [Page 233] TITLE 36--PARKS, FORESTS, AND PUBLIC PROPERTY CHAPTER I--NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR PART 18--LEASES AND EXCHANGES OF HISTORIC PROPERTY--Table of Contents Sec. 18.9 Lease terms and conditions. (a) All leases shall contain such terms and conditions as the Director deems necessary to assure use of the property in a manner consistent with the purpose for which the area was authorized by Congress and to assure the preservation of the historic property. (b) Leases granted or approved under this part shall be for the minimum term commensurate with the purpose of the lease that will allow the highest economic return to the Government consistent with prudent management and preservation practices, except as otherwise provided in this part. In no event shall a lease exceed a term of 99 years.