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

For Alaska, general hazardous chemical threshold is 10,000 pounds (federal threshold for non-placarded chemicals); ehs threshold is 500 pounds or the TPQ, whichever is lower (federal); special categories or chemicals is Poison Gas Hazard Division 2.3 and Poisons 6.1: any quantity; Explosives 1.1, 1.2 and 1.3 (excluding smokeless gunpowder, black powder, and ammunition): any quantity; Flammable Solid Divisions 4.1, 4.2 and 4.3: any quantity; Radioactive Hazard Class 7: any quantity; Compressed gas: ≥1,000 cubic feet; filing deadline is March 1, recorded from its source on 2026-08-15.

- **State:** Alaska _(verified: appears in the quote below)_
- **General hazardous chemical threshold:** 10,000 pounds (federal threshold for non-placarded chemicals)
- **EHS threshold:** 500 pounds or the TPQ, whichever is lower (federal)
- **Special categories or chemicals:** Poison Gas Hazard Division 2.3 and Poisons 6.1: any quantity; Explosives 1.1, 1.2 and 1.3 (excluding smokeless gunpowder, black powder, and ammunition): any quantity; Flammable Solid Divisions 4.1, 4.2 and 4.3: any quantity; Radioactive Hazard Class 7: any quantity; Compressed gas: ≥1,000 cubic feet _(verified: appears in the quote below)_
- **Filing deadline:** March 1 _(our reading, not quoted from the source)_

## What the source says

> Alaska, the lower thresholds apply to any quantity of a hazardous material identified in federal placarding regulations: Poison Gas Hazard Division 2.3 and Poisons 6.1, Explosives 1.1, 1.2 and 1.3 (excluding smokeless gunpowder, black powder, and ammunition), Flammable Solid Divisions 4.1, 4.2 and 4.3, and Radioactive Hazard Class 7. Additionally, any compressed gas must be reported at ≥1,000 cubic feet.

## Source

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

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/).