EPA Science Vocabulary

To search across one or all vocabularies of the EPA Science Vocabulary enter a term/phrase in the search box and/or select a vocabulary from the pick list, if the first selection has sub-vocabularies you will have the option to make a selection from the second pick list and continue this process until there are no sub-vocabularies. If none are selected, all will be searched by default.

Disclaimer: The definitions provided in EPA Science Vocabulary do not constitute the Agency's official use of terms and phrases for regulatory purposes, and should not be used to alter or supplant those found in any other federal document. Official terminology may be found in the laws and related regulations as published in such sources as the Congressional Record and Federal Register. (More)

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