Reference Source

Delaware

For Delaware, general hazardous chemical threshold is 55 gallons or 500 pounds, whichever is lower; ehs threshold is 55 gallons, 500 pounds or the threshold planning quantity, whichever is lower; special categories or chemicals is For a substance used solely for the purpose of heating a building or buildings at a facility, the threshold for that substance at that facility shall be 10,000 pounds; filing deadline is March 1; citation is 16 Del. C. § 6306 (Delaware Emergency Planning and Community Right-To-Know Act), recorded from its source on 2026-09-22.

State
Delaware
General hazardous chemical threshold
55 gallons or 500 pounds, whichever is lower verified
EHS threshold
55 gallons, 500 pounds or the threshold planning quantity, whichever is lower verified
Special categories or chemicals
For a substance used solely for the purpose of heating a building or buildings at a facility, the threshold for that substance at that facility shall be 10,000 pounds. verified
Filing deadline
March 1 verified
Citation
16 Del. C. § 6306 (Delaware Emergency Planning and Community Right-To-Know Act) our reading
Sourcedelcode.delaware.gov
Verified
Review by
DatasetEPCRA Tier II hazardous chemical inventory reporting thresholds by state

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

(d) The threshold quantities for the purpose of this section shall be as follows: (1) For substances identified as hazardous chemicals, except as provided in paragraphs (d)(2) and (3) of this section, the threshold shall be 55 gallons or 500 pounds, whichever is lower. (2) For substances included in the list of extremely hazardous substances under § 6303 of this title, the threshold shall be 55 gallons, 500 pounds or the threshold planning quantity, whichever is lower. (3) For a substance used solely for the purpose of heating a building or buildings at a facility, the threshold for that substance at that facility shall be 10,000 pounds.

— delcode.delaware.gov, retrieved 2026-09-22

Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

General hazardous chemical threshold

(d) The threshold quantities for the purpose of this section shall be as follows: (1) For substances identified as hazardous chemicals, except as provided in paragraphs (d)(2) and (3) of this section, the threshold shall be 55 gallons or 500 pounds, whichever is lower.

EHS threshold

(d) The threshold quantities for the purpose of this section shall be as follows: (1) For substances identified as hazardous chemicals, except as provided in paragraphs (d)(2) and (3) of this section, the threshold shall be 55 gallons or 500 pounds, whichever is lower. (2) For substances included in the list of extremely hazardous substances under § 6303 of this title, the threshold shall be 55 gallons, 500 pounds or the threshold planning quantity, whichever is lower.

Special categories or chemicals

(d) The threshold quantities for the purpose of this section shall be as follows: (1) For substances identified as hazardous chemicals, except as provided in paragraphs (d)(2) and (3) of this section, the threshold shall be 55 gallons or 500 pounds, whichever is lower. (2) For substances included in the list of extremely hazardous substances under § 6303 of this title, the threshold shall be 55 gallons, 500 pounds or the threshold planning quantity, whichever is lower. (3) For a substance used solely for the purpose of heating a building or buildings at a facility, the threshold for that substance at that facility shall be 10,000 pounds.

Filing deadline

(c) The inventory form shall be submitted on or before March 1 annually and shall contain data with respect to the preceding calendar year.

— all from delcode.delaware.gov, retrieved 2026-09-22

Source

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