EPA Air · violations by state, industry and year
Support activities for transportation (NAICS 4881): violations in California, 2025
- 11Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity. Each row is one violation recorded during 2025 at a California source whose primary industry code is NAICS 4881. A facility filing more than one industry code is counted under the first one on its record.
Support activities for transportation (NAICS 4881) in California, other years
Other industries in California, 2025
- Petroleum and coal products manufacturing (NAICS 3241) 290
- Waste management and remediation (NAICS 5622) 90
- Transportation equipment manufacturing (NAICS 3361) 59
- Utilities (NAICS 2213) 13
- Food manufacturing (NAICS 3113) 9
- Chemical manufacturing (NAICS 3251) 6
- Fabricated metal product manufacturing (NAICS 3324) 6
- Mining and quarrying (NAICS 2123) 4
- Utilities (NAICS 2211) 4
- Oil and gas extraction (NAICS 2111) 4
- Beverage and tobacco manufacturing (NAICS 3121) 3
High-priority air violations recorded in California, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-09-30 | UNITED AIRLINES, SF MAINTENANCE CENTER — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-09-30 | UNITED AIRLINES, SF MAINTENANCE CENTER — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | Earliest FRV determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | Earliest FRV determination | Local |
| 2025-08-25 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | Earliest FRV determination | Local |
| 2025-08-18 | SAN FRANCISCO INTERNATIONAL AIRPORT — high-priority violation on file | CALIFORNIA, Undetermined, CA | HPV day-zero determination | Local |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.