Reuse policy

Reuse the work with context intact

Public maps, summaries, and generated downloads are designed to travel. Responsible reuse preserves the meaning, source, reporting window, and limitations.

Last updated June 30, 2026

Permitted public reuse

  • Link to public pages and cite published findings.
  • Use generated iframe snippets and modify the external caption under your editorial policy.
  • Quote short factual summaries with the reporting window and source.
  • Use generated downloads in reporting, public meetings, education, and non-deceptive analysis.

Attribution and links

The embed includes a visible source link qualified with nofollow. Publishers may change or remove the external caption. Editorial links should be added because they help readers verify a relevant claim, not because ranking credit is required or exchanged.

Do not

  • Remove or obscure methodology inside the embedded map.
  • Present The Crash Data Project as an official CHP or government product.
  • Use the data to identify, contact, score, or profile crash victims.
  • Repackage raw counts as a safety rating, prediction, legal conclusion, or exposure-adjusted risk measure.
  • Use the service in a way that creates excessive automated load or bypasses technical controls.

Third-party data and maps

Underlying public records and basemap materials remain subject to their respective source terms and attribution requirements. Reuse permission for this project does not grant ownership of third-party data.