State Implementation Plan (SIP)
This page is updated with information about air quality regulations called State Implementation Plans (SIPs). A SIP is a collection of regulations and documents used by our state to reduce air pollution in areas that do not meet National Ambient Air Quality Standards, or NAAQS.
When a notice of public comment period is open for a specific SIP, information will be listed below:
|Public Notice: re. Proposed State Implementation Plan Revision to the RI Infrastructure Certification for the 2012 National Ambient Air Quality Standard for Fine Particulate Matter (PM2.5)|
For EPA-approved regulations and air quality plan summaries visit: