Hazardous material involvement
Whether a crash-involved vehicle carried placarded or reportable hazardous material.
Sources that carry it
4 sourcesAnnual public-use national probability-sample files for eligible police-reported motor-vehicle traffic crashes. Coordinated crash, vehicle, person, event-sequence, related-factor, weather, vPIC-derived, and auxiliary tables are pinned to the 2024 first final release dated 2026-04-01. CRSS is not a census or arbitrary-event lookup; estimates require its survey-design fields.
Annual final national files for every qualifying U.S. fatal motor-vehicle traffic crash, with coordinated crash, vehicle, person, ordered event, circumstance, decoded-vehicle, imputation, and auxiliary tables. Inventory is pinned to 2024 Final and does not claim nonfatal or preliminary coverage.
Free standing account-based query and download channel for CHP-maintained California SWITRS Crash, Party, and Victim data. TIMS supplies the last ten years of final data plus recent provisional data, geocoded coordinates, release-status distinctions, and a complete field codebook. Use is subject to TIMS attribution, disclaimer, litigation-use, and 23 U.S.C. §409 terms; traffic-crash report documents are not included.
Daily unit-grain public data for independently moving roadway units involved in CPD crashes, coordinated with Crashes and People through documented record keys.
Questions it helps answer
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