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Classification Methodology & Data Policy

This methodology document outlines our data classification integrity guidelines, E-E-A-T citation policies, and primary government reference sources.

1. Ingestion Integrity Policy (Anti-Thin Content)

To comply with modern Economic Classification standards and Google E-E-A-T helpful-content guidelines, every page rendered on this site contains unique, verified data assets. We enforce this through strict data assertions on compile runs. We do not generate pages for blank mappings or theoretical code permutations.

2. Primary Ingestion Reference Sources

  • US Census Bureau: Authority on NAICS taxonomy concordances (1997-2022).
  • OSHA (Dept. of Labor): Authority on Standard Industrial Classification (SIC) Manual (1987).
  • Small Business Administration (SBA): Authority on Small Business Size Standard Tables (13 CFR Part 121).
  • Internal Revenue Service (IRS): Source for Schedule C Principal Business Activity (PBA) codes.
  • GLEIF: Global Legal Entity Identifier reference copy database.