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Chemicals and reporting thresholds
  • EPCRA chemicals and reporting thresholds can be found in a table.

This table of Emergency Planning and Community Right-to-Know Act (EPCRA) chemicals and reporting thresholds may help to keep them straight:

SectionChemicals coveredThresholds
Emergency Planning (EPCRA 301 to 303 and regulation 40 CFR 355)Extremely hazardous substances (EHSs) (40 CFR 355, Appendix A and B)Threshold Planning Quantity (TPQ):
  • Ranges from 1 to 10,000 pounds onsite at any one time
Emergency Notification (EPCRA 304 and regulation 40 CFR 355)EHSs (40 CFR 355, Appendix A and B) and Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) hazardous substances (40 CFR 302.4)Reportable Quantity:
  • Ranges from 1 to 5,000 pounds, released in any 24-hour period
Safety Data Sheet (SDS) Reporting and Hazardous Chemical Inventory Reporting (EPCRA 311 and 312 and regulation 40 CFR 370)Any hazardous chemicals required to have an SDS or material safety data sheet (MSDS) and that meet the definition of hazardous chemical under the OSHA regulations found at 29 CFR 1910.1200(c)Thresholds:
  • 500 pounds or TPQ whichever is less for EHSs; gasoline greater than or equal to 75,000 gallons (all grades combined)*;
  • Diesel greater than or equal to 100,000 gallons (all grades combined)*;
  • 10,000 pounds for all other hazardous chemicals
Toxics Release Inventory (TRI) (EPCRA 313 and regulation 40 CFR 372)Toxic chemicals and chemical categories listed in the statute or regulation (40 CFR 372.65)Thresholds:
  • 25,000 pounds manufactured or processed in a year;
  • 10,000 pounds otherwise used in a year;
  • Chemicals of special concern have lower thresholds
  • Per- and polyfluoroalkyl substances have a manufacturing, processing, and otherwise use threshold of 100 pounds, notwithstanding 372.25

*These thresholds are only applicable for gasoline and diesel present at retail gas stations in tank(s) entirely underground and was in compliance at all times during the preceding calendar year with all applicable Underground Storage Tank (UST) requirements at 40 CFR 280 or requirements of the state UST program approved by the agency under 40 CFR 281.