{
  "dataset": "School Voucher Access by County",
  "version": "1.0",
  "publisher": "The School Choice Index",
  "release_date": "2026-08-01",
  "irs_status_date": "2026-07-24",
  "qa_results": {
    "county_rows": 3144,
    "unique_geoids": 3144,
    "hud_source_rows_grouped": 4764,
    "canonical_counties_without_hud_match": 0,
    "nces_geocode_rows": 22510,
    "unique_nces_ppin_identifiers": 22510,
    "nces_county_codes_outside_canonical_geography": 0,
    "participating_states_at_irs_status": 30,
    "connecticut_planning_region_equivalents": 9
  },
  "source_file_hashes": {
    "note": "SHA-256 hashes of the three local source files used in the build. Preserved to distinguish calculation changes from later upstream-file revisions.",
    "irs_state_list": "see_primary_source",
    "hud_fy2026_workbook": "see_primary_source",
    "nces_2324_geocode": "see_primary_source"
  },
  "sources": [
    {
      "name": "IRS Federal Scholarship Tax Credit page",
      "url": "https://www.irs.gov/government-entities/federal-state-local-governments/federal-scholarship-tax-credit-fstc",
      "status_date": "2026-07-24"
    },
    {
      "name": "HUD FY2026 Section 8 Income Limits workbook",
      "url": "https://www.huduser.gov/portal/datasets/il/il26/Section8-FY26.xlsx",
      "vintage": "FY2026"
    },
    {
      "name": "NCES Private School Locations 2023-24",
      "url": "https://nces.ed.gov/opengis/rest/services/K12_School_Locations/EDGE_GEOCODE_PRIVATESCH_2324/MapServer/0",
      "school_year": "2023-24"
    },
    {
      "name": "Census county geography",
      "url": "https://www.census.gov/geographies/reference-files/time-series/geo/gazetteer-files.html",
      "checked": "2026-08-01"
    }
  ]
}