Short-Lived Climate Forcers - MARAMA

Attaining More Stringent Ozone NAAQS• Ozone NAAQS Reconsideration Proposal (January 6, 2010).EPA proposed:– To revise the level of the primary 8-hour ozone standard to a levelwithin the range of 0.060-0.070 ppm– To establish a separate cumulative secondary standard within a range of7-15 ppm-hrs• Final Rule pending (expected July 2011)U.S. Environmental Protection Agency – Office of Air and Radiation9