; (iii) to decrease processing times for special recreation permits; and (iv) to issue simplified special recreation permits, including special recreation permits for an organized group recreation activity or event under subsection (e); and (2) not later than 1 year after the date on which the Secretaries complete the evaluation and identification processes under paragraph (1), revise, as necessary, relevant agency regulations and guidance documents, including regulations and guidance documents relating to the environmental review process, for special recreation permits to implement the improvements identified under paragraph (1)(B). (b) Environmental reviews (1) In general The Secretary concerned shall, to the maximum extent practicable, utilize available tools, including tiering to existing programmatic reviews, as appropriate, to facilitate an effective and efficient environmental review process for activities undertaken by the Secretary concerned relating to the issuance of special recreation permits. (2) Categorical exclusions Not later than 1 year after the date of enactment of this Act, the Secretary concerned shall— (A) evaluate— (i) whether existing categorical exclusions available to the Secretary concerned on the date of enactment of this Act are consistent with the provisions of this Act; and (ii) whether a modification of an existing categorical exclusion or the establishment of 1 or more new categorical exclusions developed in compliance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) is necessary to undertake an activity described in paragraph (1) in a manner consistent with the authorities and requirements in this Act