FWS revised regulations concerning the issuance of enhancement of survival and incidental take permits under the ESA. 

The National Aeronautics and Space Administration amended and updated its regulations for implementing NEPA, and incorporated updates to its categorical exclusions. 

BLM finalized a rule to reduce the waste of natural gas from venting, flaring, and leaks during oil and gas production activities on federal and Indian leases and to ensure that, when federal or Indian gas is wasted, the public and Indian mineral owners are compensated for the wasted gas through royalty payments. 

FWS revised its regulations concerning protections of endangered and threatened species under the ESA by reinstating the general application of the "blanket rule'' option for protecting newly listed threatened species pursuant to §4(d) of the Act, with the continued option to promulgate species-specific §4(d) rules, and extending to federally recognized tribes the exceptions to prohibitions for threatened species that the regulations currently provide to the employees or agents of FWS and other federal and state agencies to aid, salvage, or dispose of threatened species.

FWS and NMFS finalized revisions to portions of their regulations that implement §4 of the ESA, concerning procedures and criteria used for listing, reclassifying, and delisting species on the lists of endangered and threatened wildlife and plants and designating critical habitat.

FWS and NMFS finalized revisions to portions of their regulations that implement §7 of the ESA concerning interagency cooperation procedures.