; and (B) (i) shall not require a recreation service provider (including a youth group) to obtain a special recreation permit for an organized group recreation activity or event if the Secretary concerned determines— (I) the proposed activity or event to be undertaken would have only nominal effects on Federal recreational lands and waters, resources, and programs; and (II) establishing additional terms and conditions for the proposed activity or event is not necessary to protect or avoid conflict on or with Federal recreational lands and waters, resources, and programs; (ii) in the case of an organized group recreation activity or event described in subclause (I) of that paragraph, may issue to a recreation service provider (including a youth group) a special recreation permit for an organized group recreation activity or event, subject to any terms and conditions as are determined to be appropriate by the Secretary concerned, if the Secretary concerned determines— (I) the proposed activity or event to be undertaken would have only nominal effects on Federal recreational lands and waters, resources, and programs; and (II) establishing additional terms and conditions for the proposed activity or event is necessary to protect or avoid conflict on or with Federal recreational lands and waters, resources, and programs; (iii) in the case of an organized group recreation activity or event described in subclause (III) of that paragraph, shall issue to a recreation service provider (including a youth group) a special recreation permit for an organized group recreation activity or event, subject to such terms and conditions determined to be appropriate by the Secretary concerned, if the Secretary concerned determines— (I) the proposed activity or event to be undertaken would have only nominal effects on Federal recreational lands and waters, resources, and programs