; (2) otherwise conferred by this Act; or (3) when sought by the State on matters pertaining to rights conferred by this Act. (c) Rulemaking No formal rules under section 553 of title 5, United States Code, are required to implement this Act. (d) Survey The patent for and use of eligible portions of the National Forest System conveyed to a State pursuant to this Act shall not be subject to completion of a field survey and may be issued based on a protraction survey. However, the Secretary shall complete a field survey following patent. (e) Encumbrances For purposes of an orderly transfer of eligible portions of the National Forest System to State ownership and transition to State management, the Secretary shall provide a list of encumbrances and uses of record and otherwise known on the selected lands to the Commissioner during the selection-transition period. The lands selected under this Act shall be subject to all existing encumbrances. 7. Conditions on changes to land management plans regarding management of young-growth stands (a) Changes conditioned on comprehensive inventory of the young-Growth stands Before any change to an applicable land management plan takes effect that will alter management of young-growth stands covered by the land management plan, the Secretary shall— (1) conduct a comprehensive inventory of the young-growth stands; (2) provide public notice of the availability of the comprehensive inventory; and (3) after such public notice, provide a period of not less than 90 days for public comment on the comprehensive inventory. (b) Inventory requirements At a minimum, the comprehensive inventory required by subsection (a) shall— (1) include stand-level field work with respect to all 462,000 acres of young-growth timber located within the Tongass National Forest; and (2) assess all age classes of timber inventoried for the purpose of refining inventory and growth data to properly forecast yields from stands and future economic manufacturing feasibility with respect to the timber inventoried.