# EPA Supply Chain GHG Emission Factors by NAICS

## Local file

- Dataset file: `epa_supply_chain_ghg_emission_factors_co2e.csv`
- Topic: Climate, emissions, and supply chains
- Format: CSV
- Retrieved: 2026-07-01
- Size: 123,481 bytes, about 120.6 KB
- Shape: 1,016 data rows, 8 columns
- SHA-256: `6025a14c4fe16675735efba1683030e4d36011e3973f3c4261f8231aa69c002f`

## Source

- Found at: https://catalog.data.gov/dataset/supply-chain-greenhouse-gas-emission-factors-v1-3-by-naics-6
- Publisher: U.S. EPA Office of Research and Development
- Parent organization: U.S. Environmental Protection Agency
- Direct download used: https://pasteur.epa.gov/uploads/10.23719/1531143/SupplyChainGHGEmissionFactors_v1.3.0_NAICS_CO2e_USD2022.csv

## What it is

This dataset provides greenhouse gas emission factors for U.S. commodities classified with 2017 NAICS codes. The selected CSV is the compact CO2e version, which reports all greenhouse gases combined as carbon dioxide equivalents per 2022 U.S. dollar of purchaser price.

The local CSV fields are:

- `2017 NAICS Code`
- `2017 NAICS Title`
- `GHG`
- `Unit`
- `Supply Chain Emission Factors without Margins`
- `Margins of Supply Chain Emission Factors`
- `Supply Chain Emission Factors with Margins`
- `Reference USEEIO Code`

## Notes for static website use

- This file is small enough to include directly in a static site.
- It is suitable for sortable tables, sector lookup tools, or simple bar charts by NAICS category.
- The selected CSV is narrower than the by-gas version, which keeps the static asset smaller and easier to explain.
- Values are emission factors, not total emissions. A site should avoid presenting them as economy-wide totals.
- The CSV was downloaded as-is from the source. No filtering, sorting, or transformations were applied.