eCFR Scraper — US Code of Federal Regulations

Turn the eCFR's official but awkward XML into clean, section-level JSON — one row per CFR section with heading, citation, full text and full hierarchy (chapter / part / subpart). Filter by part, chapter or subpart; snapshot any version date. Free keyless official API.

For legal/compliance datasets, regulatory monitoring, and RAG pipelines over federal regulations.

What you get

Per section:

• Location — title, titleName, date, chapter, part, subpart, sectionNumber
• Heading & citation — heading, citation (e.g. 14 CFR 1.1)
• Text — text (clean, paragraphs joined) and paragraphs[] (each paragraph separately)
• Hierarchy — ancestry[] (the chapter→part→subpart→section path)

Output sample

{
  "title": 14,
  "titleName": "Aeronautics and Space",
  "date": "2026-01-01",
  "chapter": "I",
  "part": "1",
  "subpart": null,
  "sectionNumber": "1.1",
  "heading": "General definitions.",
  "citation": "14 CFR 1.1",
  "text": "As used in Subchapters A through K of this chapter, unless the context requires otherwise:\n\nAdministrator means the Federal Aviation Administrator...",
  "paragraphs": [
    "As used in Subchapters A through K of this chapter, unless the context requires otherwise:",
    "Administrator means the Federal Aviation Administrator..."
  ],
  "ancestry": ["TITLE 14", "CHAPTER I", "PART 1", "SECTION 1.1"]
}

Input

Field	Type	Default	Description
title	integer	14	CFR title number (1–50). Required.
date	string	—	Snapshot date (YYYY-MM-DD); empty = title's latest version
part	string	1	Limit to a single part; empty scrapes all parts (larger)
chapter	string	—	Only include parts under this chapter, e.g. I
subpart	string	—	Only include sections under this subpart, e.g. A
maxResults	integer	5000	Cap on sections returned

Example input

{
  "title": 14,
  "part": "1"
}

Whole chapter: {"title":17,"chapter":"II","maxResults":2000}. Dated snapshot: {"title":40,"date":"2026-01-01","chapter":"I","maxResults":3000}.

Why this actor

• Section-level structure — one clean record per section with heading, citation and full text, not a wall of XML.
• Full hierarchy + filters — chapter/part/subpart context on every row, with chapter and subpart filters and deep whole-title scraping.
• Version-dated — reproduce the CFR exactly as it stood on any date.

Pricing

Pay per result — $4 per 1,000 results (one result = one CFR section). No subscription; you pay only for what you get.

Notes & limits

• Source is the official eCFR versioner API — free, keyless. Scraping a whole title with no part filter is large and slower.
• Public data; you are responsible for compliant use. Not affiliated with the US Government Publishing Office.

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