Adequacy Determination for the Klamath Falls, Oregon PM2.5

The Environmental Protection Agency (EPA) is notifying the public of its finding that the motor vehicle emissions budgets (MVEBs) for particulate matter with an aerodynamic diameter of a nominal 2.5 microns or less (PM2.5) and nitrogen oxides (NOX) in the Klamath Falls PM2.5 state implementation plan (SIP or attainment plan) are adequate for transportation conformity purposes. The attainment plan was submitted to the EPA by the State of Oregon Department of Environmental Quality (DEQ or the State) on December 12, 2012, with a clarification to the MVEB submitted on December 19, 2013. As a result of this adequacy finding, the Oregon DEQ, the Oregon Department of Transportation, and the U.S. Department of Transportation will be required to use these MVEBs for future transportation conformity determinations.