Basic Information

There is a record in the SRS for every substance that is tracked or regulated at EPA. Each record provides basic information about that substance, such as the Chemical Abstract Service (CAS) number for a chemical or the Taxonomic Serial Number (TSN) for a biological organism. Each record also identifies standardized nomenclature about the substance and any synonyms in use at EPA. When available, there also are links to fact sheets or other documentation available from other web sites.

The SRS provides a range of services to users:

Search and retrieval of:
- Single substances
- Programmatic, statutory or other lists of substances
- Groups of substances
Information about creating machine-to-machine integration between the SRS and other systems
Outreach and education material to gain a better understanding of the SRS and its services
Links to related regulatory information within EPA and other federal agencies and states

Why the Registry?

The initial purpose of the SRS is, as the name implies, to register substances. The SRS is a registry or catalog of the substances that are identified by a federal environmental statute or that are tracked or regulated by any program at EPA. The SRS does not contain the programmatic data for the substances; it simply identifies the substances; identifies the EPA programs that track or regulate those substances; and identifies the names used for those substances by those programs.

Basic Information

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