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Is a Filing Necessary for My Chemical?

Need help Filing a PMN?

Find PMN Forms and Filing Information

Speak to a Specialist:

The Toxic Substances Control Act Hotline (tsca-hotline@epa.gov) can answer questions about the PMN process or filing a PMN form.
Call (202) 554-1404
Monday to Friday: 8:30 a.m. - 5:00 p.m. EST
FAX (202) 554-5603

The New Chemicals Program has prepared a graphic that details steps for determining whether a submission is required on a chemical substance.

EPA classifies chemical substances as either "existing" chemicals or "new" chemicals. To determine if a substance is a "new" chemical, consult EPA's Toxic Substances Control Act Chemical Substance Inventory -- commonly referred to as the Inventory, which lists "existing" substances. At the more extensive discussion of the Inventory, links are provided to several papers on Inventory nomenclature guidance. Any substance that is not on the TSCA Inventory is classified as a new chemical. Prior to manufacture (including import) of a new chemical for general commercial use, a notice must be filed with EPA under section 5 of TSCA.

Note: Having a Chemical Abstract Services Registry Number (CASRN) for a chemical does not equate to that chemical being listed on the TSCA Inventory.

Note to importers: Many chemical substances that are produced in other countries are not on the TSCA Inventory. If you intend to import any of these chemical substances into the United States, you must follow all U.S. laws and regulations pertaining to new chemicals. Requirements are discussed in the importers' - exporters' package. This package can be obtained from the TSCA Hotline.

Are any new substances exempt or excluded from PMN reporting?

Some new chemical substances are not subject to PMN reporting. These substances are either (1) excluded from TSCA reporting or (2) exempt from all or part of PMN reporting because EPA has determined that they do not warrant review or require only a short review.

EPA does not review new substances in the following product categories, which are excluded from TSCA authority at section 3(2)(B) of the Toxic Substances Control Act: tobacco and certain tobacco products, nuclear materials, munitions, foods, food additives, drugs, cosmetics, and substances used solely as pesticides. These new substances fall under the jurisdiction of other federal laws and are reviewed by other federal programs. Substances used solely as pesticides are reveiwed by a separate EPA Pesticides Program. In addition, the following are excluded from PMN reporting under certain conditions: naturally-occurring materials, products of incidental reactions, products of end-use reactions, mixtures (but not mixture components), impurities, byproducts, substances manufactured solely for export, nonisolated intermediates, and substances formed during the manufacture of an article. See 40 CFR section 710.4(b) and 720.30(a)-(h) for more information about exclusions from PMN reporting.

EPA has limited or no reporting requirements for new chemical substances in the following cases:



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