EPA-Approved Sacramento Metropolitan Air District Regulations in the California SIP
EPA’s Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 tribal nations.
The following document and tables contain the EPA approved rules and regulations for the Sacramento Metropolitan Air Quality Management District (AQMD) portion of the California State Implementation Plan (SIP). EPA's Pacific Southwest Office maintains these tables and will update them to reflect any changes in the official tables codified in the Code of Federal Regulations. To find the status of SIP submittals, visit SIP Status Reports.