; and (B) identify opportunities— (i) to eliminate duplicative processes; (ii) to reduce costs; and (iii) to decrease processing times; and (2) not later than 180 days after the date on which the Secretary concerned completes the evaluation and identification processes under paragraph (1), revise, as necessary, relevant agency regulations and policy statements to implement the improvements identified under paragraph (1)(B). (b) Environmental reviews (1) In general In issuing or renewing a special recreation permit, the Secretary concerned may, in compliance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.)— (A) use a programmatic environmental review; and (B) adopt or incorporate material from a previous environmental impact statement or environmental assessment. (2) Rulemaking Not later than 1 year after the date of enactment of this Act, the Secretary concerned shall promulgate such regulations as are necessary to carry out this subsection. (c) Categorical exclusions (1) In general Not later than 1 year after the date of enactment of this Act, the Secretary concerned shall— (A) evaluate whether one or more additional categorical exclusions developed in compliance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.) would reduce processing times or costs for the issuance or renewal of special recreation permits without significantly affecting the human environment; and (B) if the Secretary concerned determines under subparagraph (A) that one or more additional categorical exclusions would reduce processing times or costs for the issuance or renewal of special recreation permits without significantly affecting the human environment— (i) establish those categorical exclusions in compliance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.)