25 CFR §162.501

1. (a)This subpart covers:
   1. (1)Wind energy evaluation leases (WEELs), which are short-term leases that authorize possession of Indian land for the purpose of installing, operating, and maintaining instrumentation, and associated infrastructure, such as meteorological towers, to evaluate wind resources for electricity generation; and
   2. (2)Wind and solar resource (WSR) leases, which are leases that authorize possession of Indian land for the purpose of installing, operating, and maintaining instrumentation, facilities, and associated infrastructure, such as wind turbines and solar panels, to harness wind and/or solar energy to generate and supply electricity:
      1. (i)For resale on a for-profit or non-profit basis;
      2. (ii)To a utility grid serving the public generally; or
      3. (iii)To users within the local community (e.g., on and adjacent to a reservation).
2. (b)If the generation of electricity is solely to support a use approved under subpart B, Agricultural Leases; subpart C, Residential Leases; or subpart D Business Leases (including religious, educational, recreational, cultural, or other public purposes), for the same parcel of land, then the installation, operation, and maintenance of instrumentation, facilities, and associated infrastructure are governed by subpart B, C, or D, as appropriate.