((a)) ** Inventory and assessments**
((1)) ** In general** The Secretary concerned shall—
((A)) conduct an inventory and assessment of recreation resources for Federal recreational lands and waters;
((B)) develop the inventory and assessment with support from public comment; and
((C)) update the inventory and assessment as the Secretary concerned determines appropriate.
((2)) ** Unique recreation values** An inventory and assessment conducted under paragraph (1) shall—
((A)) recognize—
((i)) any unique recreation values and recreation opportunities; and
((ii)) areas of concentrated recreational use; and
((B)) identify, list, and map recreation resources by—
((i)) type of recreation opportunity and type of natural or artificial recreation infrastructure;
((ii)) to the extent available, the level of use of the recreation resource as of the date of the inventory; and
((iii)) identifying, to the extent practicable, any trend relating to recreation opportunities or use at a recreation resource identified under subparagraph (A).
((3)) ** Assessments** For any recreation resource inventoried under paragraph (1), the Secretary concerned shall assess—
((A)) the maintenance needs of, and expenses necessary to administer, the recreation resource;
((B)) the suitability for developing, expanding, or enhancing the recreation resource; and
((C)) the adequacy of the current management of the recreation resource.
((b)) ** Existing efforts** To the extent practicable, the Secretary concerned shall use or incorporate existing applicable research and planning decisions and processes in carrying out this section.
((c)) ** Omitted**