California
For California, general hazardous chemical threshold is 55 gallons for materials that are liquids, 500 pounds for solids, or 200 cubic feet for compressed gas; ehs threshold is equal to, or greater than, the threshold planning quantity; special categories or chemicals is a total weight of 5,000 pounds for solids or a total volume of 550 gallons for liquids, if the hazardous material is a solid or liquid substance that is classified as a hazard for purposes of Section 5194 of Title 8 of the California Code of Regulations solely as an irritant or sensitizer; report name is Hazardous Materials Business Plan (HMBP); citation is Cal. Health & Safety Code § 25507, recorded from its source on 2026-09-22.
- State
- California
- General hazardous chemical threshold
- 55 gallons for materials that are liquids, 500 pounds for solids, or 200 cubic feet for compressed gas verified
- EHS threshold
- equal to, or greater than, the threshold planning quantity verified
- Special categories or chemicals
- a total weight of 5,000 pounds for solids or a total volume of 550 gallons for liquids, if the hazardous material is a solid or liquid substance that is classified as a hazard for purposes of Section 5194 of Title 8 of the California Code of Regulations solely as an irritant or sensitizer verified
- Report name
- Hazardous Materials Business Plan (HMBP) verified
- Citation
- Cal. Health & Safety Code § 25507 our reading
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
(1) (A) It handles a hazardous material or a mixture containing a hazardous material that has a quantity at any one time during the reporting year that is equal to, or greater than, 55 gallons for materials that are liquids, 500 pounds for solids, or 200 cubic feet for compressed gas.
— leginfo.legislature.ca.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
(1) (A) It handles a hazardous material or a mixture containing a hazardous material that has a quantity at any one time during the reporting year that is equal to, or greater than, 55 gallons for materials that are liquids, 500 pounds for solids, or 200 cubic feet for compressed gas.
EHS threshold
(3) It handles at any one time during the reporting year an amount of a hazardous material that is equal to, or greater than, the threshold planning quantity, under both of the following conditions: (A) The hazardous material is an extremely hazardous substance, as defined in Section 355.61 of Title 40 of the Code of Federal Regulations. (B) The threshold planning quantity for that extremely hazardous substance listed in Appendices A and B of Part 355 (commencing with Section 355.1) of Subchapter J of Chapter I of Title 40 of the Code of Federal Regulations is less than 500 pounds.
Special categories or chemicals
(4) (A) It handles at any one time during the reporting year a total weight of 5,000 pounds for solids or a total volume of 550 gallons for liquids, if the hazardous material is a solid or liquid substance that is classified as a hazard for purposes of Section 5194 of Title 8 of the California Code of Regulations solely as an irritant or sensitizer
Report name
CalEPA oversees the statewide implementation of the Hazardous Materials Business Plan (HMBP) program, which aims to prevent or minimize harm to public health and safety and the environment from a release or threatened release of a hazardous material.
— all from leginfo.legislature.ca.gov, retrieved 2026-09-22
Sources
- leginfo.legislature.ca.govhttps://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=25507.
- calepa.ca.govhttps://calepa.ca.gov/cupa/hazardous-materials-business-plan/