To prevent unnecessary administrative delay and to avoid duplication of administration and enforcement, BLM and a State may make the following kinds of agreements:

(a) An agreement to provide for a joint Federal/State program; and

(b) An agreement under § 3809.202 which provides that, in place of BLM administration, BLM defers to State administration of some or all of the requirements of this subpart subject to the limitations in § 3809.203.