Terminology Services

EPA Enterprise Vocabulary

To search within this vocabulary enter a term or phrase in the search box and/or select from the pick list under the tier. If the first selection has an additional tier, you have the option to select from the pick list under that tier, etc. If no selection is made, the entire vocabulary is searched. If a selection is made, the search is limited to that part of the vocabulary.

Disclaimer: The definitions provided in this 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)