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SO2 Nonattainment Area SIP Requirements

SO2 (1971) Area Requirements

SO2 Nonattainment NSR
SO2 SIP
SO2 SIP - Primary Standard
SO2 SIP - Secondary Standard

SO2 (2010) Area Requirements

SO2 Attainment Demonstration
SO2 Contingency Measures
Emission Inventory
SO2 Nonattainment NSR
SO2 RACM/RACT
SO2 RFP

See the nonattainment state and national reports for the status of state submissions to meet these requirements, and EPA's actions on the submissions:

SO2 Nonattainment Area SIP Requirements

Sulfur Dioxide (SO2) Pollution