Federal Register Tracker

Pull articles from the US Federal Register filtered by agency, document type, date range, and/or full-text query. One row per article, with title, abstract, effective date, comment-close date, agencies, CFR references, and links.

What you get

{
  "snapshotAt":           "2026-06-02T10:55:11+00:00",
  "documentNumber":       "2026-12345",
  "title":                "Endangered and Threatened Wildlife and Plants; …",
  "type":                 "Rule",
  "subtype":              null,
  "action":               "Final rule.",
  "abstract":             "We, the U.S. Fish and Wildlife Service, …",
  "publicationDate":      "2026-05-28",
  "signingDate":          "2026-05-22",
  "effectiveOn":          "2026-06-27",
  "commentsCloseOn":      null,
  "agencies":             ["fish-and-wildlife-service", "interior-department"],
  "agencyNames":          ["Fish and Wildlife Service", "Interior Department"],
  "topics":               ["Endangered and threatened species", "Wildlife"],
  "cfrReferences":        ["50 CFR 17"],
  "significant":          false,
  "presidentName":        null,
  "htmlUrl":              "https://www.federalregister.gov/documents/2026/05/28/…",
  "pdfUrl":               "https://www.govinfo.gov/content/pkg/FR-2026-05-28/pdf/…",
  "jsonUrl":              "https://www.federalregister.gov/api/v1/documents/2026-12345.json",
  "regulationsDotGovUrl": "https://www.regulations.gov/document/FWS-R4-ES-…"
}

How to use

Input.

{
  "agencies":             ["environmental-protection-agency"],
  "types":                ["RULE", "PRORULE"],
  "publicationDateFrom":  "2026-05-01",
  "publicationDateTo":    "",
  "query":                "PFAS",
  "significantOnly":      false,
  "maxResults":           500
}

agencies — agency slugs as used by federalregister.gov. Common: environmental-protection-agency, securities-and-exchange-commission, treasury-department, food-and-drug-administration, federal-communications-commission, internal-revenue-service, department-of-justice, department-of-energy, department-of-labor, consumer-financial-protection-bureau. Empty list = all agencies.

types — RULE (final rules), PRORULE (proposed rules), NOTICE (agency notices), PRESDOCU (presidential documents). Empty = all.

query — full-text query across title, abstract, and full document. Leave blank to skip.

publicationDateFrom / publicationDateTo — YYYY-MM-DD bounds. If both blank and no other filters, the actor falls back to last-7-days-of-RULEs.

significantOnly — restrict to docs flagged 'significant' under E.O. 12866 (high-impact rulemakings).

maxResults — stop after this many articles. 0 = unbounded.

Pricing

PAY_PER_EVENT · $0.0001 per article_record · 10 000 articles = $1.

Buyer

• Compliance teams tracking specific-agency rulemakings.
• Trade associations watching for proposed rules in their sector.
• Legal researchers building rule-history datasets.
• Policy reporters monitoring a specific CFR title or topic.
• Anyone who currently maintains a custom federalregister.gov scraper.

Source

https://www.federalregister.gov/api/v1/articles — the official public REST API. No auth required, generous rate limits, pagination via next_page_url. Actor paces 0.4 s between pages.