; (ii) fully document that a category of actions will not individually or cumulatively have a significant effect on the human environment; and (iii) revise relevant agency regulations and policy statements to implement those categorical exclusions. (2) Administration (A) In general In administering a categorical exclusion established under paragraph (1)(B), the Secretary concerned shall comply with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) (including regulations promulgated pursuant to that Act). (B) Extraordinary circumstances In determining whether to use a categorical exclusion established under paragraph (1)(B), the Secretary concerned shall apply, as applicable, the extraordinary circumstances procedures described in— (i) section 220.6 of title 36, Code of Federal Regulations (or a successor regulation)