Revisions to the Continuous Emissions Monitoring Rule for the Acid Rain Program, NOX Budget Trading Program, Clean Air Interstate Rule, and the Clean Air Mercury Rule

EPA is finalizing rule revisions that modify existing requirements for sources affected by the federally administered emission trading programs including the NO<INF>X</INF> Budget Trading Program, the Acid Rain Program, the Clean Air Interstate Rule, and the Clean Air Mercury Rule. The revisions are prompted primarily by changes being implemented by EPA's Clean Air Markets Division in its data systems in order to utilize the latest modern technology for the submittal of data by affected sources. Other revisions address issues that have been raised during program implementation, fix specific inconsistencies in rule provisions, or update sources incorporated by reference. These revisions do not impose significant new requirements upon sources with regard to monitoring or quality assurance activities.