(a) Improvements placed on the Navajo Partitioned Lands will be considered affixed to the land unless specifically exempted in the permit. No improvement may be constructed or removed from Navajo Partitioned Lands without the written consent of BIA and the Navajo Nation.

(b) Before undertaking an improvement, BIA, Navajo Nation and permittee will negotiate who will complete and maintain improvements. The improvement agreement will be reflected in the permit.