# Approval and Promulgation of State Implementation Plan Revisions; State of North Dakota; Interstate Transport of Pollution for the 1997 PM2.5 and 8-Hour Ozone NAAQS: “Interference With Maintenance” Requirement > **Rule** · Final rule. · Published 2010-11-22 · Effective 2010-12-22 · 75 FR 71023 ## Document - **Document number:** 2010-29244 - **Category:** air-emissions - **Federal Register citation:** 75 FR 71023 - **CFR reference:** 40 CFR 52 - **Publication date:** 2010-11-22 - **Effective date:** 2010-12-22 - **State:** ND - **EPA docket:** EPA-R08-OAR-2009-0557 ## Abstract EPA is partially approving the State Implementation Plan revisions submitted by the State of North Dakota on April 6, 2009. Specifically, EPA is approving the portions of the "Interstate Transport of Air Pollution" revisions addressing the "interference with maintenance" requirement of Clean Air Act (CAA) section 110(a)(2)(D)(i) for the 1997 PM2.5 and 8-hour ozone National Ambient Air Quality Standards (NAAQS). The "interference with maintenance" requirement of section 110(a)(2)(D)(i) prohibits a state's emissions from interfering with maintenance of the NAAQS by any other state. This action is being taken under section 110 of the CAA. ## Source - [Federal Register document](https://www.federalregister.gov/documents/2010/11/22/2010-29244/approval-and-promulgation-of-state-implementation-plan-revisions-state-of-north-dakota-interstate) --- *AI Analytics · CC0 1.0*