NOX SIP Call (Renewal)

The NOx SIP Call was created to reduce emissions of nitrogen oxides (NOx) from power plants and other large combustion sources. NOx is a prime ingredient in the formation of ground-level ozone (smog), a pervasive air pollution problem in many areas of the eastern United States. The NOx SIP Call requires affected states to include certain provisions in their state implementation plans (SIPs) addressing emissions of NOx that adversely affect air quality in other states. Although most large combustion sources affected under the NOx SIP Call are also subject to monitoring requirements under the Acid Rain Program or the Cross-State Air Pollution Rule, this information collection is being renewed because some industrial sources in certain States are still required to monitor and report emissions data to EPA under these rules, so we will account for their burden.

The latest form for NOX SIP Call (Renewal) expires 2026-04-30 and can be found here.