PUBLIC LAW 102-575—OCT. 30, 1992 106 STAT. 4669 (c) The report shall be submitted to the Committees on Reports. Appropriations and Interior and Insular Affairs of the House of Representatives and the Committees on Appropriations and Energy and Natural Resources of the Senate within three years of the appropriation of funds authorized by section 1617. SEC. 1617. AUTHORIZATION OF APPROPRIATIONS. 43 USC 390h-15. There is authorized to be appropriated for fiscal years beginning after September 30, 1992, $4,000,000 to carry out the study authorized by section 1616. TITLE XVII—IRRIGATION ON STANDING ROCK INDIAN RESERVATION, NORTH DAKOTA SEC. 1701. IRRIGATION ON STANDING ROCK INDIAN RESERVATION. (a) Section 5(e) of Public Law 89-108, as amended by section 3 of the Garrison Diversion Unit Reformulation Act of 1986 (Public Law 99-294), is amended by striking "Fort Yates" and inserting lOO Stat. 419. "one or more locations within the Standing Rock Indian Reservation". (b) Section 10 of Public Law 89-108, as amended by section 8 of Public Law 99-294, is further amended by adding subsection 100 Stat. 424. (Q\ Qg follows* "(e) The portion of the $61,000,000 authorized for Indian municipal, rural, and industrial water features shall be indexed as necessary to allow for ordinary fluctuations of construction costs incurred after October 1, 1986, as indicated by engineering costs indices applicable for the type of construction involved. All other authorized cost ceilings shall remain unchanged." TITLE XVHI—GRAND CANYON PROTECTION SEC. 1801. SHORT TITLE. This Act may be cited as the "Grand Canyon Protection Act of 1992". SEC. 1802. PROTECTION OF GRAND CANYON NATIONAL PARK. (a) IN GENERAL. —The Secretary shall operate Glen Canyon Dam in accordance with the additional criteria and operating plans specified in section 1804 and exercise other authorities under existing law in such a manner as to project, mitigate adverse impacts to, and improve the values for which Grand Canyon National Park and Glen Canyon National Recreation Area were established, including, but not limited to natural and cultural resources and visitor use. (b) COMPLIANCE WITH EXISTING LAW. —The Secretary shall implement this section in a manner fully consistent with and subject to the Colorado River Compact, the Upper Colorado River Basin Compact, the Water Treaty of 1944 with Mexico, the decree of the Supreme Court in Arizona v. California, and the provisions of the Colorado River Storage Project Act of 1956 and the Colorado River Basin Project Act of 1968 that govern allocation, appropriation, development, and exportation of the waters of the Colorado River Basin. (c) RULE OF CONSTRUCTION.— Nothing in this title alters the purposes for which the Grand Canyon National Park or the Glen Canyon National Recreation Area were established or affects the Grand Canyon Protection Act of 1992.