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Air Emissions Factors and Quantification

Join the CHIEF Listserv to receive information about new emissions factors, conferences, updates to software tools and related information by contacting join-chief@lists.epa.gov.

Air Emissions Factors and Quantification

Emissions factors are tools for building emissions inventories, guiding air quality management decisions and developing emissions control strategies.  This technical website provides current information on these tools and provides support for using them.