Which agency is responsible for AP-42 emission factors?

Which agency is responsible for AP-42 emission factors?

• A. National Oceanic and Atmospheric Administration
• B. Department of Transportation
• C. Environmental Protection Agency
• D. Department of Energy

Answer: (C)

AP-42 emission factors are published and maintained by the Environmental Protection Agency. AP-42, the Compilation of Air Emission Factors, is EPA’s standard reference for estimating emissions from stationary sources. It collects emission factors from measurements and engineering estimates and is regularly updated by EPA to cover diverse source categories. This is the agency responsible for producing and updating this resource, whereas NOAA handles weather and climate topics, DOT covers transportation policy and safety, and DOE focuses on energy and science research.

AP-42 emission factors are published and maintained by the Environmental Protection Agency. AP-42, the Compilation of Air Emission Factors, is EPA’s standard reference for estimating emissions from stationary sources. It collects emission factors from measurements and engineering estimates and is regularly updated by EPA to cover diverse source categories. This is the agency responsible for producing and updating this resource, whereas NOAA handles weather and climate topics, DOT covers transportation policy and safety, and DOE focuses on energy and science research.