The State of Arizona may relinquish in favor of the Papago Indians such tracts within the townships referred to in section
463a of this title as it may see fit and shall have the right to select other unreserved and nonmineral public lands within the State of Arizona equal in area to those relinquished, said lieu selections to be made in the same manner as is provided for in the Enabling Act of June 20, 1910 (
36 Stat. 558), or in the discretion of the State of Arizona under the provisions of section
315g of title
43. The payment of fees or commissions is waived in all lieu selections made pursuant to this section.