EPA Air · inspections by state, industry and year

NAICS 9999: inspections in California, 2026

• 172Inspections

A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row is one inspection recorded during 2026 at a California source whose primary industry code is NAICS 9999. A facility filing more than one industry code is counted under the first one on its record.

NAICS 9999 in California, other years

• 2025 210
• 2024 234
• 2023 221
• 2022 183
• 2021 215
• 2020 182
• 2019 249
• 2018 178
• 2017 190

Other industries in California, 2026

• Oil and gas extraction (NAICS 2111) 400
• Utilities (NAICS 2211) 220
• Petroleum and coal products manufacturing (NAICS 3241) 172
• Beverage and tobacco manufacturing (NAICS 3121) 131
• Nonmetallic mineral product manufacturing (NAICS 3272) 103
• Waste management and remediation (NAICS 5622) 97
• Merchant wholesalers, nondurable goods (NAICS 4247) 61
• Food manufacturing (NAICS 3114) 46
• Food manufacturing (NAICS 3111) 33
• Nonmetallic mineral product manufacturing (NAICS 3279) 32
• Food manufacturing (NAICS 3116) 29
• Plastics and rubber products manufacturing (NAICS 3261) 28
• Pipeline transportation (NAICS 4862) 28
• Utilities (NAICS 2213) 25
• Pipeline transportation (NAICS 4861) 22
• Food manufacturing (NAICS 3115) 21
• Animal production (NAICS 1121) 17
• Fabricated metal product manufacturing (NAICS 3324) 17
• Justice, public order and safety (NAICS 9221) 15
• NAICS 4543 14
• Paper manufacturing (NAICS 3222) 13
• Nonmetallic mineral product manufacturing (NAICS 3273) 11
• Chemical manufacturing (NAICS 3251) 9
• Food manufacturing (NAICS 3119) 9
• Crop production (NAICS 1113) 8
• National security and international affairs (NAICS 9281) 8
• Executive and legislative government (NAICS 9211) 8
• Fabricated metal product manufacturing (NAICS 3323) 8
• Agriculture and forestry support (NAICS 1151) 8
• Animal production (NAICS 1123) 7
• Mining and quarrying (NAICS 2123) 7
• Pipeline transportation (NAICS 4869) 7
• Chemical manufacturing (NAICS 3252) 6
• Mining support (NAICS 2131) 6
• Hospitals (NAICS 6221) 5
• Transportation equipment manufacturing (NAICS 3364) 5
• Fabricated metal product manufacturing (NAICS 3328) 5
• Miscellaneous manufacturing (NAICS 3399) 5
• Transportation equipment manufacturing (NAICS 3366) 5
• Chemical manufacturing (NAICS 3253) 4
• Primary metal manufacturing (NAICS 3314) 4
• Waste management and remediation (NAICS 5629) 4
• Furniture and related product manufacturing (NAICS 3371) 4
• Nonmetallic mineral product manufacturing (NAICS 3271) 3
• NAICS 4523 3
• Crop production (NAICS 1112) 3
• Repair and maintenance (NAICS 8111) 3
• Food manufacturing (NAICS 3118) 3
• Miscellaneous manufacturing (NAICS 3391) 3
• Specialty trade contractors (NAICS 2383) 3
• Transportation equipment manufacturing (NAICS 3362) 3
• Heavy and civil engineering construction (NAICS 2371) 3
• Fabricated metal product manufacturing (NAICS 3327) 3

Air-emissions inspections recorded in California, 2026

Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.