Chemical Accident Prevention Program (CAPP) - Regulated Substance Information
Highly Hazardous Substance Information
If a facility uses, stores, produces or otherwise handles any highly hazardous substance in excess of the listed threshold quantity, they are likely subject to the provisions of CAPP. A list of the substances can be accessed by clicking on one of the following links:
Substance Data Forms
Chemical-specific data forms have been developed for numerous highly hazardous substances. They are intended to provide a quick reference to select physical properties, toxicity information and regulatory information. Available forms are listed below:
| Chemical Name | Alternate Chemical Name/Mixture Description (if Applicable) | CAS | PDF Document |
|---|---|---|---|
| Ammonia | Anhydrous Ammonia | 7664-41-7 |
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| Ammonia | Ammonia Solution; Ammonium Hydroxide/20 wt% to 44 wt% | 7664-41-7 |
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| Boron Trichloride | 10294-34-5 | Coming Soon | |
| Butane | 106-97-8 |
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| Chlorine | 7782-50-5 |
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| Difluoroethane | 75-37-6 | Coming Soon | |
| Hydrogen Peroxide | Concentration of 52% or greater by weight | 7722-84-1 | Coming Soon |
| Isobutane | 1,1-dimenthyl ethane | 75-28-5 |
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| Isopentane | 78-78-4 |
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| Mercury | 7439-97-6 |
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| Methane | 74-82-8 |
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| Methyl ether | 115-10-6 | Coming Soon | |
| Nitroen Dioxide | 10102-44-0 | Coming Soon | |
| Pentane | 109-66-0 |
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| Propane | 74-98-6 |
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| Sulfur Dioxide | Anhydrous | 7446-09-05 | Coming Soon |
| Titanium Tetrachloride | 7550-45-0 | Coming Soon |
Also available are substance data form list of conversion factors and source references.
Explosives Information
If a facility manufactures explosives for sale in any quantity, they are likely subject to the provisions of CAPP. An explosive is a substance that is classified as either Division 1.1, 1.2, 1.3, 1.4, or 1.5 in the federal Department of Transportation's Table of Hazardous Materials, codified at 49 CFR 172.101.