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RSEI Data Dictionary: North American Industry Classification System (NAICS) Data

The following tables provide descriptions for each field in each table. Note that for the Geographic Microdata, "Other Geographies" includes block groups, census tracts, and ZIP code files.  For more information, see the RSEI methodology document and the RSEI Microdata documentation. 

                                                               Tables in the RSEI Data Dictionary
Facility Chemical Disaggregated Grid Cell Geographic Microdata Aggregated Grid Cell Geographic Microdata for States
Off-site MCL Aggregated Grid Cell Geographic Microdata Water Geographic Microdata
Submissions Releases Disaggregated Geographic Microdata for Other Geographies Grid Shapefiles
Elements Media Aggregated Geographic Microdata for Other Geographies Census Crosswalks
NAICS Category Geographic Microdata Shapefiles for Other Geographies Population Data

NAICS codes are collected by TRI.

These tables are from RSEI Version 2.3.12 (RY 2022) and cannot be used with tables from any other version.

RSEI NAICS Table (Spreadsheet) (xlsx)

RSEI NAICS Table (Text Format) (csv)

NAICS Data

Variable Description
2017NAICSCode Six-digit NAICS code, based on 2017 NAICS code list.
LongName Text description of code.
Changed2017 Description of change if code is new or revised with the 2017 NAICS.
TRIIndustrySector Industry sector with text description defined by 3- or 4-digit NAICS, as used by the TRI program for sector analyses.
IndustrySubsector 4-Digit NAICS code and text description.
4DigitNAICS 4-Digit NAICS.
NewIndustry 'TRUE' if industry was added during 1998 industry expansion.

Risk-Screening Environmental Indicators (RSEI) Model

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Last updated on March 4, 2025
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