In this supplemental notice of proposed rulemaking (SNPR), EPA is providing an opportunity for public comment on our conclusion that emissions from Iowa, Kansas, Michigan, Missouri, Oklahoma, and Wisconsin significantly contribute to downwind nonattainment or interfere with maintenance of the 1997 ozone National Ambient Air Quality Standards (NAAQS) in other states. EPA is also proposing Federal Implementation Plans (FIPs) to address (a) the emissions identified as significantly contributing to nonattainment and interference with maintenance and (b) the transport requirements with respect to the relevant NAAQS. EPA is proposing to implement the ozone season NO X program in the Transport Rule (Federal Implementation Plans to Reduce Interstate Transport of Fine Particulate Matter and Ozone in 27 States; Correction of SIP Approvals for 22 States) as the FIPs for Iowa, Kansas, Michigan, Missouri, Oklahoma, and Wisconsin to address the emissions identified as significantly contributing to nonattainment or interfering with maintenance with respect to the 1997 ozone NAAQS. In addition, this notice identifies the budgets, associated variability limits, and allowance allocations that would be used for each state if EPA finalizes the FIPs proposed here.

Source: Federal Register