EPA Air · inspections by state, industry and year

Chemical manufacturing (NAICS 3251): inspections in North Carolina, 2025

• 131Inspections

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 2025 at a North Carolina source whose primary industry code is NAICS 3251. A facility filing more than one industry code is counted under the first one on its record.

Chemical manufacturing (NAICS 3251) in North Carolina, other years

• 2026 118
• 2024 133
• 2023 135
• 2022 131
• 2021 121
• 2020 129
• 2019 77
• 2018 28
• 2017 33

Other industries in North Carolina, 2025

• Utilities (NAICS 2211) 619
• Petroleum and coal products manufacturing (NAICS 3241) 369
• Plastics and rubber products manufacturing (NAICS 3261) 256
• Waste management and remediation (NAICS 5622) 215
• Furniture and related product manufacturing (NAICS 3371) 179
• Paper manufacturing (NAICS 3221) 150
• Nonmetallic mineral product manufacturing (NAICS 3272) 147
• Hospitals (NAICS 6221) 143
• Wood product manufacturing (NAICS 3219) 138
• Paper manufacturing (NAICS 3222) 124
• Wood product manufacturing (NAICS 3211) 114
• Wood product manufacturing (NAICS 3212) 108
• Mining and quarrying (NAICS 2123) 101
• Merchant wholesalers, nondurable goods (NAICS 4247) 93
• Nonmetallic mineral product manufacturing (NAICS 3273) 93
• Food manufacturing (NAICS 3111) 89
• Textile mills (NAICS 3133) 86
• Food manufacturing (NAICS 3116) 85
• Chemical manufacturing (NAICS 3252) 81
• Utilities (NAICS 2213) 79
• Pipeline transportation (NAICS 4862) 79
• Transportation equipment manufacturing (NAICS 3366) 78
• Plastics and rubber products manufacturing (NAICS 3262) 68
• Chemical manufacturing (NAICS 3254) 67
• Agriculture and forestry support (NAICS 1151) 65
• Educational services (NAICS 6113) 62
• Beverage and tobacco manufacturing (NAICS 3122) 56
• National security and international affairs (NAICS 9281) 56
• Printing and related support (NAICS 3231) 55
• Nonmetallic mineral product manufacturing (NAICS 3271) 47
• Chemical manufacturing (NAICS 3253) 44
• Food manufacturing (NAICS 3118) 39
• Warehousing and storage (NAICS 4931) 39
• Utilities (NAICS 2212) 39
• Food manufacturing (NAICS 3119) 38
• Chemical manufacturing (NAICS 3256) 38
• Transportation equipment manufacturing (NAICS 3363) 38
• Electrical equipment and appliance manufacturing (NAICS 3359) 37
• Chemical manufacturing (NAICS 3255) 37
• Food manufacturing (NAICS 3112) 36
• Primary metal manufacturing (NAICS 3311) 35
• Fabricated metal product manufacturing (NAICS 3329) 30
• Transportation equipment manufacturing (NAICS 3362) 30
• Fabricated metal product manufacturing (NAICS 3323) 28
• Primary metal manufacturing (NAICS 3314) 27
• Textile mills (NAICS 3132) 27
• Primary metal manufacturing (NAICS 3315) 27
• Fabricated metal product manufacturing (NAICS 3324) 26
• Computer and electronic product manufacturing (NAICS 3344) 26
• Miscellaneous manufacturing (NAICS 3399) 26
• Nonmetallic mineral product manufacturing (NAICS 3279) 25
• Transportation equipment manufacturing (NAICS 3361) 24
• Merchant wholesalers, nondurable goods (NAICS 4245) 20
• Textile mills (NAICS 3131) 20
• Chemical manufacturing (NAICS 3259) 20
• Merchant wholesalers, durable goods (NAICS 4239) 18
• Justice, public order and safety (NAICS 9221) 17
• Food manufacturing (NAICS 3114) 16
• Nonmetallic mineral product manufacturing (NAICS 3274) 14
• Personal and laundry services (NAICS 8123) 13

Air-emissions inspections recorded in North Carolina, 2025

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.