Section 162.543 - May permanent improvements be made under a WSR lease?(a) A WSR lease must provide for the installation of a facility and associated infrastructure of a size and magnitude necessary for the generation and delivery of electricity, in accordance with § 162.019 . These facilities and associated infrastructure are considered permanent improvements. A resource development plan must be submitted for approval with the lease under § 162.563(h) .(b) If the parties agree to any of the following changes to the resource development plan after lease approval, they must submit the revised plan to BIA for the file: (1) Location of permanent improvements;(2) Type of permanent improvements; or(3) Delay of 90 days or more in any phase of development.