EPA Air · by primary industry (NAICS)

Air-emissions sources, NAICS 4471

• 8,301Facilities

8,301 air-emissions sources across the country file this NAICS code as their primary industry. Each row is one EPA facility identifier, with its county and compliance history as the ICIS-AIR file states them; the code is the one the facility filed first.

Primary NAICS code as filed in EPA’s ICIS-AIR download -- a facility carrying more than one code is listed under its first.