FWS proposed to remove the regulations that govern the southern sea otter translocation program in the southern waters of California because it has failed to fulfill its purpose.

FWS proposed to designate approximately 25,704 acres in Riverside County, California, as critical habitat for Coachella Valley milk-vetch under the ESA.

FWS proposed to remove inter-subspecific crossed or generic tigers from the list of species that are exempt from registration under ESA regulations for captive-bred wildlife.

FWS announced a 90-day finding on a petition to delist the valley elderberry longhorn beetle under the ESA; the agency found that delisting may be warranted and initiated a status review. 

FWS announced a 90-day finding on a petition to list the Leona's little blue butterfly as threatened or endangered and to designate critical habitat under the ESA; the agency found that listing may be warranted and initiated a status review.

FWS proposed to designate approximately 2,090 stream miles of federal, state, tribal, and private lands in Arizona, California, Colorado, Nevada, New Mexico, and Utah as critical habitat for the southwestern willow flycatcher under the ESA.

FWS and NOAA-Fisheries announced a 90-day finding on a petition to list the saltmarsh topminnow as threatened or endangered under the ESA; the agencies found that listing may be warranted and initiated a status review. 

FWS proposed to list the Miami blue butterfly as endangered under the ESA and to list the cassius blue butterfly, the ceraunus blue butterfly, and the nickerbean blue butterfly as threatened due to their similarity of appearance; see above for direct final rule.

FWS proposed to list the Philippine cockatoo and the yellow-crested cockatoo as endangered under the ESA, to list the white cockatoo as threatened, and to forego listing of the crimson shining parrot.

FWS announced a 12-month finding on a petition to list the Nueces River shiner and the plateau shiner as threatened or endangered and to designate critical habitat under the ESA; the agency found that listing is not warranted.