Subchapter XXIV. Grand Canyon National Park 16 U.S. Code §221. Establishment; boundaries 16 U.S. Code §221a. Boundary changed 16 U.S. Code §221b. Various laws made applicable to added lands 16 U.S. Code §221c. Exchange of lands 16 U.S. Code §221d. Relinquishment of interest in road 16 U.S. Code §221e. Additional lands 16 U.S. Code §222. Administration, concessions, and privileges; contracts for sale of water 16 U.S. Code §224. Entries under land laws; toll road 16 U.S. Code §225. Laws applicable; easements and rights-of-way 16 U.S. Code §227. Utilization of areas for Government reclamation projects 16 U.S. Code §228. Buildings on privately owned lands 16 U.S. Code §228a. Enlargement of boundaries; statement of purpose 16 U.S. Code §228b. Composition of park 16 U.S. Code §228c. Acquisition of lands within enlarged boundaries by donation, purchase, or exchange; transfer of jurisdiction over Federal lands 16 U.S. Code §228d. Acquisition of State of Arizona or local lands by donation or exchange; approval for transfer to United States of Indian trust lands 16 U.S. Code §228e. Cooperative agreements for protection and unified interpretation of enlarged park; scope of agreements 16 U.S. Code §228f. Preservation and renewal of existing grazing rights within enlarged boundaries; term of renewal 16 U.S. Code §228g. Aircraft or helicopter regulation within enlarged boundaries; procedure for promulgation of administrative rules and regulations 16 U.S. Code §228h. Construction with existing Colorado River system reclamation provisions 16 U.S. Code §228i-1. Report to President 16 U.S. Code §228i. Havasupai Indian Reservation 16 U.S. Code §228j. Authorization of appropriations; availability of sums