Amend the Act of August 9, 1955 (commonly known as the "Long-Term Leasing Act"), to authorize leases of up to 99 years for land in the Mashpee Wampanoag Tribe Reservation and land held in trust for the Wampanoag Tribe of Gay Head (Aquinnah), and for other purposes.

Summary

Amends 25 U.S.C. § 415(a) to change the list of named Indian reservations and restricted lands that are exceptions to the default 25-year maximum lease term for restricted Indian lands. By modifying that enumerated roster, the bill changes which specific parcels may qualify for longer or different maximum lease terms under federal law. The change affects tribal land leasing rules, potentially altering lease length options for tribes, individual allottees, lessees, and agencies that administer Indian land leases. It does not create a new program or add funding; it adjusts which lands are covered by an existing statutory exception.

• Modifies the enumerated list of reservations/restricted lands in 25 U.S.C. § 415(a).
• Changes which restricted Indian lands may be subject to lease-term exceptions from the 25-year default.
• Directly affects tribal land leasing options, potentially enabling longer or different lease terms for certain lands.
• Does not appropriate funds or create a new federal program; it is a statutory amendment to existing leasing law.
• May require administrative updates by the Bureau of Indian Affairs and adjustments to lease paperwork and guidance.
• Could influence economic development, financing, and investment on affected tribal lands.
• Applicability to existing leases and transitional rules are not specified and may be subject to administrative interpretation or legal challenge.
• Impacts are geographically specific—only the named reservations/lands in the statute are affected.