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  • Where can I download hourly emissions data from continuous monitoring?

    Hourly emissions data files are available from the Clean Air Markets Division of EPA, collected as part of 40 CFR Part 75. The download location has changed in February, 2023. The new location is https://campd.epa.gov/data/bulk-data-files . Once on this new site, use the menu (at the left) and the Keyword…

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  • Can I leave my car or other vehicles on my property while I am away?

    The cleaning team will need workspace outside of your home or place of business to set up trailers and equipment. If it is determined that your vehicles need to be moved, you should arrange to temporarily remove them from your property.

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  • What happens to my belongings during the cleaning?

    The items you leave on your property and inside your home or place of business will remain where you left them and will not be removed.

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  • How complete are the data in the National Emissions Inventory?

    While the goal of the National Emissions Inventory (NEI) program is to include all emissions data, there are always challenges meeting this goal. The answer about completeness of coverage of sources depends on the emissions sector and pollutant. In general, the criteria air pollutants and precursors (CAPs) are expected to…

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  • Where is more information available about emissions estimation methods used by the EPA?

    For criteria air pollutants and precursors as well as for hazardous air pollutants, the methods are described in the technical support document (TSD) for the latest National Emissions Inventory (NEI) available from the main NEI page . For greenhouse gas emissions, you can find greenhouse gas inventory methods from the…

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  • Can I get access to the Emissions Inventory System if I am not a data provider to EPA?

    The Emission Inventory System (EIS) is a secured database for EPA and State/Local and Tribal Air Agencies only. The EIS is used to develop the National Emission Inventory (NEI). While you cannot have access to EIS, you can have access to the current and past NEIs through EPA’s NEI website…

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  • What do I do with my indoor plants during the cleaning?

    You may leave plants on your property and inside your home or place of business. However, the cleaning team will not move any of your belongings, including plants. You may want to consider moving plants outside for the day, if possible, and watering them before you leave.

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  • How are emissions trends compiled?

    For criteria air pollutants and precursors, the emissions trends are based on the triennial National Emissions Inventory data, with some interim year data included for non-triennial years. The methods and interim-year approaches are described on the “Development of Data” tab included with the data provided on the Air Pollutant Emissions…

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  • How do I get access to the Emissions Inventory System?

    Access to the Emissions Inventory System (EIS) is available to state, local, tribal agencies, their representatives (such as contractors), to multijurisdictional organizations (MJOs), and to EPA staff. The EIS is not available to the public. Instructions for access to the EIS is available in the Emissions Inventory System (EIS) User’s…

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  • How do I determine what SCCs have changed between inventory years?

    These are available in the EIS (Reporting Code table) or public website: https://sor-scc-api.epa.gov/sccwebservices/sccsearch/ Filter on “last inventory year” to remove SCCs no longer active. If this column has a date in it, then the SCC has been retired as of that date. The “last updated date” (column J) indicates when…

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  • Where are the NAICS/ SIC and SCC codes changes that have been implemented for the 2017NEI?

    Please refer to the NEI webpage for 2017 documentation , and follow the link for Appendix 2 - 2017 NEI Plan Code Changes. That Excel file describes anticipated changes for the SCCs and NAICS and includes a helpful read me. I'll just note in the next NEI/EIS email that SCC…

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  • What happens if any of my items get damaged during the cleaning process?

    If any items get damaged, an independent appraiser will estimate the value of the item by using the videos and photos of your belongings to determine a fair value for the item that needs to be replaced. The assessment will then be presented to you for your approval. If you…

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  • What should I do with food items?

    Any food in your kitchen cabinets and refrigerator/freezer that you will not need while you are away can be left in place. This includes items such as spices, canned, boxed, and bagged foods, and refrigerated/frozen foods. Before you leave your home or office, please be sure to empty all garbage…

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  • How do I know that my belongings will be safe during the cleaning?

    Before the team begins cleaning, they will videotape each room and photograph the items you left. The videos and photos provide a record of the items that were present and the conditions of those items at the time the cleaning team entered your structure. An EPA representative will be present…

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  • How often are the NEI data updated and how frequently are the data published?

    The full NEI is created for every third inventory year (e.g., 2008, 2011, 2014, and 2017). The data for each version has been updated two times each for the 2008, 2011, and 2014 NEI cycles. For the 2017 NEI and beyond, the EPA is trying to publish only a single…

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