Plumas County-Portola Air Quality Plans
- California State Implementation Plans
- Nonattainment Area Plans
- Butte County Air Quality Plans
- Eastern Kern Air Quality Plans
- Great Basin Unified APCD Air Quality Plans
- Imperial County Air Quality Plans
- Mariposa County APCD Air Quality Plans
- Northern Sierra AQMD Air Quality Plans
- Sacramento Region Air Quality Plans
- San Diego County Air Quality Plans
- San Francisco Bay Area Air Quality Plans
- San Joaquin Valley Air Quality Plans
- Santa Barbara County Air Quality Plans
- South Coast Air Quality Plans
- Ventura County Air Quality Plans
- Western Mojave Desert Air Quality Plans
- Statewide Efforts
- Nonattainment Area Plans
Contact
This page contains information regarding recent and historical State Implementation Plan (SIP) activity related to Plumas County-City of Portola, a nonattainment area for the PM2.5 National Ambient Air Quality Standard under the jurisdiction of the Northern Sierra Air Quality Management District.