---
license: cc-by-4.0
task_categories:
- text-generation
- question-answering
language:
- en
tags:
- legal
- ecfr
- regulation
- rag
- government
---

# US Regulation eCFR 2026-01-01 Dataset

This repository contains a structured, machine-readable version of the **Electronic Code of Federal Regulations (eCFR)**, captured as of January 1, 2026. Unlike the annual CFR snapshots, this dataset reflects the editorialized, near real-time version of federal regulations.

## Dataset Description

The eCFR is a daily updated editorial compilation of CFR material and Federal Register amendments. This dataset captures a specific point-in-time snapshot of that fluid regulatory environment, structured for high-performance AI applications, semantic search, and legal analytics.

- **Source:** [GovInfo Bulk Data (eCFR)](https://www.govinfo.gov/bulkdata/ECFR)
- **Snapshot Date:** 2026-01-01
- **Format:** [Specify format, e.g., JSONL, Parquet, or CSV]
- **Focus:** Current administrative law across all 50 Titles.

## Data Acquisition & Integrity

This dataset was compiled using legitimate developer-sanctioned methods. Data was retrieved via official U.S. Government Publishing Office (GPO) bulk data endpoints and the eCFR API. 

By utilizing official developer channels rather than traditional bot-based web scraping, the dataset ensures:
1. **Structural Consistency:** Preserves the complex hierarchy of Titles, Subtitles, Chapters, Parts, and Sections.
2. **Metadata Enrichment:** Includes versioning information and effective dates as provided by the GPO.
3. **Clean Ingestion:** Optimized for RAG (Retrieval-Augmented Generation) by removing noise and maintaining the integrity of legal citations.

## Potential Use Cases

* **RAG & Agentic Workflows:** Providing LLMs with the most "current" version of federal regulations for accurate grounding.
* **Regulatory Intelligence:** Analyzing the evolution of specific agency rules over time.
* **Compliance Automation:** Mapping internal corporate policies to the latest eCFR requirements.
* **Cross-Title Linking:** Discovering semantic relationships between different regulatory domains.

## Structure

The dataset follows the official eCFR hierarchy:
* **Title:** Broad subject area (e.g., Title 21 for Food and Drugs).
* **Chapter:** Specific regulatory agency.
* **Part/Section:** The granular text of the law.
* **Last Modified:** Timestamp indicating the last editorial update to that section.

## License

This dataset is licensed under the **Creative Commons Attribution 4.0 International (CC BY 4.0)**.

### Attribution
If you utilize this dataset, please provide attribution to:
1. **Original Source:** The U.S. Government Publishing Office (GPO) [GovInfo Bulk Data](https://www.govinfo.gov/bulkdata/CFR).
2. **Dataset Curator:** Azzindani (via Hugging Face Datasets).

### Government Works Public Domain Notice
The underlying regulatory text is a work of the U.S. Government and is not subject to copyright protection within the United States. This license applies to the specific curation, structuring, and formatting provided in this repository.

## Disclaimer
*This dataset is intended for research and development purposes. It is not an official legal record. For official legal purposes, always consult the eCFR at GovInfo.gov.*

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