Definition
"Tri" as a standalone legal term is not an established term of art in Anglo-American law. The historical dictionary sources provided do not contain a coherent entry for "Tri" as a discrete legal concept; the fragments appearing in Bouvier's, Black's, and Burrill's represent corrupted or misattributed OCR text from surrounding entries, not a definition of this term.
In legal research contexts, "TRI" may appear as an abbreviation or initialism. The most legally significant use is:
1. Toxic Release Inventory (TRI): A database maintained by the United States Environmental Protection Agency (EPA) under the Emergency Planning and Community Right-to-Know Act (EPCRA), 42 U.S.C. §§ 11001–11050. The TRI tracks the management and release of certain toxic chemicals by industrial and federal facilities. Facilities meeting threshold reporting requirements must submit annual reports, which the EPA compiles into a publicly accessible database. TRI data is widely used in environmental litigation, regulatory compliance, and community right-to-know contexts.
2. Toyota Research Institute (TRI): An abbreviation appearing in technology and intellectual property research contexts, with no distinct legal definition.
Why It Matters in Research
Researchers encountering "TRI" in legal documents should first determine whether the context is environmental law, where Toxic Release Inventory is the dominant legal usage, or another domain where it functions as a generic initialism.
In environmental litigation and regulatory research, TRI records are primary sources. TRI data can establish whether a facility released reportable quantities of listed toxic chemicals in a given year, and this data is frequently cited in toxic tort litigation, environmental impact assessments, and agency enforcement proceedings. Because TRI reporting thresholds and the list of covered chemicals have changed since EPCRA's enactment in 1986, researchers must verify which version of the chemical list and which thresholds applied in the year at issue. Historical TRI data is archived by the EPA and accessible through the agency's online TRI Explorer tool.
Researchers should not expect to find "TRI" as a headword in traditional legal dictionaries. The source material above does not yield a coherent definition; the fragments in Bouvier's, Black's, and Burrill's appear to be OCR artifacts from adjacent entries (likely "Vi et armis," "Tributum," and related Latin terms). Treating those fragments as defining content for "TRI" would be a research error.
Historical Dictionary Support
None of the three source dictionaries—Bouvier's, Black's (2nd Ed.), or Burrill's—contain a substantive entry for "TRI" as an independent legal term. The text produced under each source reflects scanning or extraction errors from nearby entries. Burrill's fragment, for example, references a "duodecemvirale sacramentum" and the Latin "tribuere, to give," language consistent with an entry on "Tributum" (a tax or tribute in Roman and early English law), not a free-standing definition of "Tri." Black's fragment references writs of summons to parliament and the phrase "with the advice of our council," consistent with an entry on a Latin adverbial phrase, not this term. Bouvier's fragment appears to be from an entry on "Ad Excambium." Historical legal dictionaries provide no independent support for "TRI" as a term of art.
Jurisdictional Note
The Toxic Release Inventory is a creature of federal law and applies to facilities in all U.S. states and territories meeting EPCRA reporting thresholds. Some states maintain supplemental toxic release reporting programs with lower thresholds or broader chemical lists than the federal TRI program.