Facility greenhouse gas reports

Washington requires some facilities and transportation fuel suppliers to annually report their greenhouse gas emissions. Our program uses the same emission calculation methods as EPA's greenhouse gas reporting program. We use these reports to better understand the amount and sources of carbon pollution in Washington.

Greenhouse gas emissions data

Greenhouse gas reporting data can be viewed, filtered, and downloaded on our data.wa.gov site. This table contains information from all reports for each year since reporting began in 2012. You can also view the reports using the following tools.

This dataset does not include all of Washington’s emissions.  See the Washington State Greenhouse Gas Emissions Inventory for statewide emissions totals. The inventory and other official greenhouse gas emissions totals often do not include biogenic carbon dioxide emissions. Subtract biogenic carbon dioxide emissions from total emissions or use the provided alternate graphs below if you want numbers more consistent with those other programs.

Washington’s greenhouse gas reporting map shows all reporting facilities with a physical location. Transportation fuel suppliers have statewide emissions and are not on the map. View the map in full screen.

Total reported facility emissions by year and gas.
You can also view a version that does not include biogenic carbon dioxide.

Other graphs include:

Reporting your greenhouse gas emissions

The information below will help you report your facility's emissions for the required greenhouse gas (GHG) reporting program. If you're a transportation fuel supplier, you have special reporting instructions that you can view on our transportation fuel supplier greenhouse gas reporting page. 

Some facilities that are required to report their emissions to us are also required to report to the EPA. Please visit their website for more information about the EPA greenhouse gas reporting program.

Who is required to report in Washington?

  • Facilities that emit at least 10,000 metric tons of carbon dioxide equivalent (CO2e) per year in Washington.
  • Suppliers of liquid motor vehicle fuel, special fuel, or aircraft fuel that provide products equivalent to at least 10,000 metric tons of carbon dioxide per year in Washington.

Steps to register your facility and report your greenhouse gases

Types of reporters Reporting deadlines
Facilities who report GHGs to both Ecology and EPA March 31 of the following year
Facilities who report to Ecology only Oct. 31 of the following year
Transportation fuel suppliers Oct. 31 of the following year

There is an annual reporting fee. The fee is based on our cost to administer the program and the number of businesses reporting that year. View the fee schedule for 2020 reporting


Type of reporters Fee for 2020 reports
Transportation fuel suppliers $0
Facilities $2,635 per facility