Every Department of Transportation Final Rule 1994-2026 excluding FAA (which has its own dedicated dataset of 22.9k Airworthiness Directives). NHTSA detailed Federal Motor Vehicle Safety Standards (FMVSS — seatbelts, airbags, child restraints, tire specs, school buses). FMCSA commercial motor carrier rules (hours of service, CDL standards, brake performance). FRA railroad safety (track standards, positive train control). PHMSA pipeline safety + hazardous materials shipping. MARAD merchant marine licensing. FTA mass transit. STB rail rates + mergers. Source: federalregister.gov/api/v1/documents.json (2 paginated multi-slug fetches per year — top 4 by volume in pass A, remaining 3 in pass B).

Live API

This dataset is served via a live REST API at api.ai-analytics.org. The card you're reading exists so HuggingFace's index can route AI agents + researchers to the canonical source.

API endpoint: https://api.ai-analytics.org/api/v1/dot/rules/recent
Dataset landing page: https://api.ai-analytics.org/datasets/dot-rules
DataCatalog (JSON-LD): https://api.ai-analytics.org/.well-known/dataset.json
DCAT-US (data.gov-compatible): https://api.ai-analytics.org/data.json

Quick start

# Recent records (JSON)
curl 'https://api.ai-analytics.org/api/v1/dot/rules/recent?limit=10'

# Browse on the web
open 'https://api.ai-analytics.org/datasets/dot-rules'

MCP (Model Context Protocol)

This dataset is also accessible via MCP at https://api.ai-analytics.org/mcp — Claude, ChatGPT, and other MCP-compatible agents can call it directly.

Source

Agency: US Department of Transportation (excl. FAA)
Primary source: https://www.federalregister.gov/agencies/transportation-department
License: CC0 1.0 Universal (derived data). Underlying federal works are US public domain under 5 USC 105 / 17 USC 105.
Update cadence: Per agency (most refresh daily via Cloudflare Cron Trigger)

Keywords

DOT rules, NHTSA FMVSS, FMCSA commercial driver, FRA railroad safety, PHMSA pipeline safety, hazmat, MARAD merchant marine, FTA transit, STB rail rates

Citation

@misc{ai_analytics_dot_rules_2026,
  title  = {{name}},
  author = {AI Analytics},
  year   = {2026},
  url    = {https://api.ai-analytics.org/datasets/dot-rules},
  note   = {Derived from US Department of Transportation (excl. FAA). License: CC0 1.0.}
}

Maintained by AI Analytics. Data is CC0; please cite the upstream agency.

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Total file size:

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Transportation (non-FAA) Federal Register Final Rules (~2k NHTSA + FMCSA + FRA + PHMSA + STB + MARAD + FTA)