Emission Inventory Reporting
and Stationary Sources of air pollution within Humboldt, Del Norte, and Trinity Counties are required to report emission information to the District each year.
The District offers two methods for submitting this information:
- Option 1 - An Emission Inventory Reporting Form is mailed and emailed to each source required to report, on January 1st of each year.
Complete this form and mail it back to the District Office.
- Option 2 - Complete the process using the Online Reporting Tool. You can access this tool via the link provided to you in your email, or
by clicking on one of the links below. Reporting online saves you time and the cost of postage. Plus, you will receive instant confirmation that your report was received.
If you did not receive an email from the District, contact District staff at (707) 443-3093 or send us an
email updating your contact information.
Access the Online Reporting Tool:
the District is only offering online reporting to Portable Engines, Stationary Engines, and Gas Station Facilities. Reporting for the 2017 Calendar year
is due on or before February 1, 2018 for Gas Stations, and March 1, 2018 for Stationary and Portable Engines. A seperate report is required
for each device and/or location.
you have questions or need assistance, please contact us by calling (707)443-3093 or by sending us an
All 3 Zones
Tuesday January 16th
Did You Know?
Pre-1990 trucks can emit two and a half times as much NOx and five times as much particulates as trucks meeting the current on-road heavy-duty engine exhaust emission standards.
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