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What is the Chemical Abstract Service (CAS) number and where can I find it?

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What is the Chemical Abstract Service (CAS) number and where can I find it?

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The Chemical Abstract Service (CAS) number requested on the Tier II form is an informational aid for the Local Emergency Planning Committees (LEPC) and the New Mexico State Emergency Response Commissions. Though many chemical labels do not display the CAS number, Material Safety Data Sheets should. Also, the List of Extremely Hazardous Substances and the List of Toxic Chemicals (Section 313) cite the CAS numbers of their chemicals. For mixtures (which frequently do not have a specific CAS number), note the CAS numbers of as many of the components in the mixture as possible. If you are unable to locate the CAS numbers for a chemical, then submit the form without it. This requirement should not stop you from reporting accurately. What is a “reportable chemical”? As defined by the EPA, a “reportable chemical” refers to hazardous chemicals and extremely hazardous substances present at your facility in excess of the relevant reporting threshold and not exempt under Title III. How specific m

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