; (C) not necessary for long-term resource management; and (D) designed in accordance with standards appropriate for the intended use of the road, taking into consideration— (i) safety; (ii) the cost of transportation; and (iii) impacts to land and resources. 3. Improvement of habitat for greater sage-grouse and mule deer (a) Categorical exclusion (1) In general Not later than 1 year after the date of the enactment of this Act, the Secretary shall develop one or more categorical exclusions (as defined in section 1508.4 of title 40, Code of Federal Regulations (or a successor regulation)) for covered vegetative management activities carried out to establish or improve habitat for greater sage-grouse and mule deer. (2) Administration In developing and administering a categorical exclusion under paragraph (1), the Secretary shall— (A) be consistent with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq.); (B) apply the extraordinary circumstances procedures under section 220.6 of title 36, Code of Federal Regulations (or successor regulations), in determining whether to use the categorical exclusion; and (C) consider— (i) the relative efficacy of landscape-scale habitat projects; (ii) the likelihood of continued declines in the populations of greater sage-grouse and mule deer in the absence of landscape-scale vegetation management