162.100—What are the purposes of this part?

(a) The purposes of this part are to:
(1) Identify the conditions and authorities under which certain interests in Indian land and Government land may be leased;
(2) Describe the manner in which various types of leases may be obtained;
(3) Identify terms and conditions that may be required in various types of leases;
(4) Describe the policies and procedures that will be applied in the administration and enforcement of various types of leases; and
(5) Identify special requirements that apply to leases made under special acts of Congress that apply only to certain Indian reservations.
(b) This part includes six subparts, including separate, self-contained subparts relating to Agricultural Leases (Subpart B), Residential Leases (Subpart C, reserved), Business Leases (Subpart D, reserved), and Non-Agricultural Leases (Subpart F), respectively. Subpart E identifies special provisions applicable only to leases made under special acts of Congress that apply only to certain Indian reservations. Leases covered by subpart E are also subject to the general provisions in subparts A through F, respectively, except to the extent those general provisions are inconsistent with any of the special provisions in subpart E or any special act of Congress under which those leases are made.
(c) These regulations apply to all leases in effect when the regulations are promulgated; however, unless otherwise agreed by the parties, these regulations will not affect the validity or terms of any existing lease.