AIR POLLUTION: GOP senators want more transparency in ozone standard process Amanda Peterka, E&E reporter Published: Thursday, May 29, 2014 A group of Republican senators is seeking more transparency in U.S. EPA's process of setting a new federal ozone standard. Please subscribe to E&E Daily to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.