EPA Air · inspections by state, industry and year

Chemical manufacturing (NAICS 3256): inspections in Pennsylvania, 2026

• 7Inspections

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 Pennsylvania source whose primary industry code is NAICS 3256. A facility filing more than one industry code is counted under the first one on its record.

Chemical manufacturing (NAICS 3256) in Pennsylvania, other years

• 2025 17
• 2024 17
• 2023 17
• 2022 13
• 2021 13
• 2020 13
• 2019 12
• 2018 10
• 2017 12

Other industries in Pennsylvania, 2026

• Oil and gas extraction (NAICS 2111) 895
• Utilities (NAICS 2211) 414
• Waste management and remediation (NAICS 5622) 251
• Pipeline transportation (NAICS 4862) 237
• Petroleum and coal products manufacturing (NAICS 3241) 210
• Mining and quarrying (NAICS 2123) 177
• Plastics and rubber products manufacturing (NAICS 3261) 162
• Mining support (NAICS 2131) 150
• Merchant wholesalers, nondurable goods (NAICS 4247) 128
• Hospitals (NAICS 6221) 117
• Personal and laundry services (NAICS 8122) 93
• Fabricated metal product manufacturing (NAICS 3323) 71
• Printing and related support (NAICS 3231) 71
• Chemical manufacturing (NAICS 3251) 71
• Utilities (NAICS 2213) 71
• Primary metal manufacturing (NAICS 3315) 67
• Furniture and related product manufacturing (NAICS 3371) 67
• Nonmetallic mineral product manufacturing (NAICS 3273) 65
• Chemical manufacturing (NAICS 3254) 64
• Paper manufacturing (NAICS 3222) 62
• Educational services (NAICS 6113) 59
• Fabricated metal product manufacturing (NAICS 3328) 53
• Wood product manufacturing (NAICS 3219) 51
• Transportation equipment manufacturing (NAICS 3362) 50
• Nonmetallic mineral product manufacturing (NAICS 3272) 48
• Primary metal manufacturing (NAICS 3311) 47
• Paper manufacturing (NAICS 3221) 45
• Educational services (NAICS 6111) 42
• Primary metal manufacturing (NAICS 3312) 41
• Primary metal manufacturing (NAICS 3313) 40
• Fabricated metal product manufacturing (NAICS 3324) 39
• Chemical manufacturing (NAICS 3252) 39
• Primary metal manufacturing (NAICS 3314) 38
• Food manufacturing (NAICS 3119) 37
• Repair and maintenance (NAICS 8111) 37
• Personal and laundry services (NAICS 8123) 35
• Nonmetallic mineral product manufacturing (NAICS 3274) 33
• Food manufacturing (NAICS 3111) 32
• Nonmetallic mineral product manufacturing (NAICS 3279) 30
• Nonmetallic mineral product manufacturing (NAICS 3271) 30
• Machinery manufacturing (NAICS 3331) 29
• Transportation equipment manufacturing (NAICS 3364) 28
• Chemical manufacturing (NAICS 3259) 28
• Food manufacturing (NAICS 3118) 27
• Electrical equipment and appliance manufacturing (NAICS 3359) 26
• Fabricated metal product manufacturing (NAICS 3321) 26
• Pipeline transportation (NAICS 4869) 25
• Fabricated metal product manufacturing (NAICS 3329) 25
• Utilities (NAICS 2212) 24
• Wood product manufacturing (NAICS 3212) 23
• Justice, public order and safety (NAICS 9221) 23
• Machinery manufacturing (NAICS 3339) 23
• Miscellaneous manufacturing (NAICS 3399) 22
• Plastics and rubber products manufacturing (NAICS 3262) 21
• Professional, scientific and technical services (NAICS 5417) 21
• Wood product manufacturing (NAICS 3211) 20
• Mining and quarrying (NAICS 2121) 19
• Food manufacturing (NAICS 3112) 19
• Data processing and hosting (NAICS 5182) 16
• Chemical manufacturing (NAICS 3255) 16

Air-emissions inspections recorded in Pennsylvania, 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.