Air quality emissions reporting
Washington Emissions Inventory Reporting System
Facilities with air operating permits are required to send us, or their local clean air agency, their emissions data through the Washington Emissions Inventory Reporting System (WEIRS).
WEIRS
Our WEIRS data collection system keeps track of information that facilities with air operating permits must report annually.
Annual air quality registration
Most sources of industrial air pollution are required to register with us, report their emissions, and pay a yearly fee based on the amount of air pollution. Some smaller sources just report their emissions.
Registration program
Tracking emissions helps us keep Washington's air healthy.
To ensure businesses are meeting air quality requirements, we regularly inspect registered sources.
Climate change
Washington requires some industrial facilities, businesses, and transportation fuel suppliers to annually report their greenhouse gas emissions. We use these reports to better understand the amount and sources of carbon pollution in Washington. Those reporting programs are found in the climate change section of our website.
Greenhouse gas emissions
Some businesses and organizations that are responsible for greenhouse gas emissions are required to report them and in some cases reduce them.