This dataset depicts the locations of sites that have obtained permits from the Utah Division of Air Quality as required by Title V of the 1990 Clean Air Act. The Division of Air Quality is responsible for issuing permits for any operation that emits any contaminant into the air. Such permits will often set limits on the amount of a contaminant that can be released, the amount of material that can be processed, or how dark a smoke plume can be. Two different kinds of permits are issued by the Division: Approval Orders and Operating Permits.

Operating Permits are issued by the Operating Permit section. These are new permits required by Title V of the 1990 Clean Air Act Amendments, and implemented at the federal level by 40 CFR Part 70. Any operation that has the potential to emit 10 tons per year of any hazardous air pollutant, 25 tons per year of any combination of hazardous air pollutants, or 100 tons per year of any other air pollutant is a major source, and must apply for an Operating Permit. Smaller operations that are regulated by a New Source Performance Standard (NSPS), National Emission Standard for Hazardous Air Pollutants (NESHAP), or other Clean Air Act requirement must also apply for an Operating Permit. A more detailed description of the Operating Permit program in Utah is available.