The Mine Safety and Health Administration amended its existing standards to better protect miners against occupational exposure to respirable crystalline silica, a significant health hazard, and to improve respiratory protection for miners from exposure to airborne contaminants.

NMFS announced a 90-day finding that a petition to list the whitespotted eagle ray as a threatened or endangered species and to designate critical habitat concurrent with the listing does not present substantial scientific or commercial information indicating that the petitioned action may be warranted. 

FWS announced the updated planning policies for the National Wildlife Refuge System to incorporate landscape conservation plans and consideration of climate change and other anthropogenic forces in refuge management. 

NMFS announced its intent to conduct a five-year review of the endangered western distinct population segment of the Steller sea lion. 

The National Highway Traffic Safety Administration proposed to establish two new federal motor vehicle safety standards specifying performance requirements for all motor vehicles that use hydrogen as a fuel source.