# Oregon — EPCRA Tier II hazardous chemical inventory reporting thresholds by state

For Oregon, general hazardous chemical threshold is Dual-level reporting system; Upper Reporting Levels (URL): 500 gallons (liquids), 500 pounds (solids), 500 cubic feet (non-liquefied gases), 500 gallons (liquefied gases); ehs threshold is Lower Reporting Levels (LRL) for highly toxic or explosive substances: 5 gallons (liquids), 10 pounds (solids), 20 cubic feet (compressed gasses); special categories or chemicals is Non-sealed radioactive: reportable at any amount; filing deadline is March 1, recorded from its source on 2026-08-15.

- **State:** Oregon _(verified: appears in the quote below)_
- **General hazardous chemical threshold:** Dual-level reporting system; Upper Reporting Levels (URL): 500 gallons (liquids), 500 pounds (solids), 500 cubic feet (non-liquefied gases), 500 gallons (liquefied gases) _(verified: appears in the quote below)_
- **EHS threshold:** Lower Reporting Levels (LRL) for highly toxic or explosive substances: 5 gallons (liquids), 10 pounds (solids), 20 cubic feet (compressed gasses) _(verified: appears in the quote below)_
- **Special categories or chemicals:** Non-sealed radioactive: reportable at any amount _(verified: appears in the quote below)_
- **Filing deadline:** March 1 _(our reading, not quoted from the source)_

## What the source says

> Oregon are determined using a dual-level reporting system. Substances that are highly toxic or explosive apply to the Lower Reporting Levels (LRL). 5 gallons (liquids) 10 pounds (solids) 20 cubic feet (compressed gasses) Non-sealed radioactive: reportable at any amount All other substances must adhere to the Upper Reporting Levels (URL): 500 gallons (liquids) 500 pounds (solids) 500 cubic feet (non-liquefied gases) 500 gallons (liquefied gases)

## Sources disagree

More than one authority states this, and they do not state the same
thing. Both are reproduced with the source each came from.

### General hazardous chemical threshold

uscompliance.com says general hazardous chemical threshold is **Dual-level reporting system; Upper Reporting Levels (URL): 500 gallons (liquids), 500 pounds (solids), 500 cubic feet (non-liquefied gases), 500 gallons (liquefied gases)**, as of 2026-08-15.

> Oregon are determined using a dual-level reporting system. Substances that are highly toxic or explosive apply to the Lower Reporting Levels (LRL). 5 gallons (liquids) 10 pounds (solids) 20 cubic feet (compressed gasses) Non-sealed radioactive: reportable at any amount All other substances must adhere to the Upper Reporting Levels (URL): 500 gallons (liquids) 500 pounds (solids) 500 cubic feet (non-liquefied gases) 500 gallons (liquefied gases)

Source: https://www.uscompliance.com/blog/hazardous-material-storage-reports-with-non-federal-thresholds/

edge-es.com says general hazardous chemical threshold is **Dual-level system**, as of 2026-08-15.

> Oregon: Requires a detailed site diagram.

Source: https://edge-es.com/epcra-tier-ii-reporting-state-by-state-requirements/


### Special categories or chemicals

uscompliance.com says special categories or chemicals is **Non-sealed radioactive: reportable at any amount**, as of 2026-08-15.

> Oregon are determined using a dual-level reporting system. Substances that are highly toxic or explosive apply to the Lower Reporting Levels (LRL). 5 gallons (liquids) 10 pounds (solids) 20 cubic feet (compressed gasses) Non-sealed radioactive: reportable at any amount All other substances must adhere to the Upper Reporting Levels (URL): 500 gallons (liquids) 500 pounds (solids) 500 cubic feet (non-liquefied gases) 500 gallons (liquefied gases)

Source: https://www.uscompliance.com/blog/hazardous-material-storage-reports-with-non-federal-thresholds/

edge-es.com says special categories or chemicals is **Requires a detailed site diagram**, as of 2026-08-15.

> Oregon: Requires a detailed site diagram.

Source: https://edge-es.com/epcra-tier-ii-reporting-state-by-state-requirements/


## Source

- https://www.uscompliance.com/blog/hazardous-material-storage-reports-with-non-federal-thresholds/
- https://edge-es.com/epcra-tier-ii-reporting-state-by-state-requirements/

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [EPCRA Tier II hazardous chemical inventory reporting thresholds by state](https://referencesource.org/epcra-tier-ii-state-reporting-thresholds/).