Current:
Guidance Materials for the Emission Statement
Approval of Alternate Emission Factors:
The Indiana Department of Environmental Management’s (IDEM’s) Nonrule Policy document concerning the use of emission factors not found in United States Environmental Protection Agency (U.S. EPA) guidance is available on IDEM Nonrule Policies page.
U.S. EPA’s Clearinghouse for Inventories and Emissions Factors (CHIEF) site contain a great deal of information and resources concerning emission factors.
IDEM’s Nonrule Policy document concerning the confidentiality of emissions data submitted to the Office of Air Quality under Indiana’s Emission Reporting Rule.