The Alaska Department of Environmental Conservation (ADEC) is required to report emissions data to the National Emissions Inventory (NEI) in accordance with the United States Environmental Protection Agency (EPA) federal regulations 40 C.F.R. 51, Subpart A; Alaska State Statutes (AS) AS 46.03 and AS 46.14; and Alaska Administrative Code (AAC) 18 AAC 50 (18 AAC 50.200 and 50.346).

18 AAC 50.200 Information Requests

“If requested by the Department to determine compliance with AS 46.03, AS 46.14, and their chapter, the owner and operator, or permittee of a stationary source shall maintain records of, and report to the Department, Information on, the nature and amount of emissions from the Stationary Source and other information designated by the Department.”

18 AAC 50.275 Consistency of reporting methodologies

(a) Regardless of permit classification, as of September 7, 2022, all stationary sources operating in the state shall report actual emissions as required under this chapter to the department, either upon request or to meet individual permit requirements, in order for the state to meet federal reporting requirements under 40 C.F.R. Part 51, Subpart A.

(b) for the purposes of reporting potential, actual, or assessable emissions under any requirement of this chapter, stationary sources shall use consistent pollutant-specific emissions factors and calculation methods for all reporting requirements.

18 AAC 50.346 Construction and operating permits: Other permit conditions

• Alaska State Statutes (specifically 46.03 and 46.14)
• Alaska Air Quality Control Regulations 18 AAC 50, Effective January 8, 2020
• Air Permit Program Regulation
• Standard Condition XV -Emission Inventory Reporting (PDF)
• Standard Condition XVI - Emission Inventory Reporting Form (PDF)
• Fee Evaluation & Rule Making
• Air Online Services

Federal Emission Inventory Regulations and Tools

• Federal Clean Air Act
• EPA Regulations
• EPA Emissions Inventory
• 40 C.F.R. 51, Subpart A Appendix Table 1
• EPA NEI home page
• EPA Emissions Reporting Requirements (AERR)
• EPA Clearinghouse for Inventories and Emissions Factors (CHIEF)
• EPA WebFire
• EPA Development and Selection of Ammonia Emission Factors (August 1994)
• EPA Enforcement Alert Reminder About Inappropriate Use of AP-42 Emission Factors (NOV/2020)
• EPA Emissions Inventory Improvement Program (EIIP)
• EPA Nonpoint Oil and Gas Estimation Tool