Jump to navigation
Coronavirus Disease 2019 (COVID-19) in Colorado: State & National Resources
Skip to main content
Services & information
Boards & commissions
Concerns & emergencies
TRI frequently requested information
Back to Toxic Release Inventory (TRI)
The Toxic Release Inventory (TRI) forms for activity in a given calendar year are due July 1 of the following calendar year.
Guidance documents for TRI reporting
Who must report TRI?
Access TRI data
Persistent, bioaccumulative and toxic (PBT) chemicals rules
Threshold for reporting lead and lead compounds
TRI reporting software and guidance