Built from public NHTSA Standing General Order & California DMV data · snapshot through May 2026
1,115
ADS crash reports (Apr 2025–May 2026)
15
Reporting operators
1
Fatality alleged in window
82%
Property-damage-only, no injury
This month's read
Reporting stays concentrated: Waymo accounts for ~82% of all ADS crash reports (918 of 1,115) — but that reflects fleet size and reporting diligence, not relative risk. The signal worth watching is the severity mix: 82% are property-damage-only and just one fatality is alleged across the 13-month window.
Who is reporting (top operators)
Operator
Reports
Waymo
918
Avride
65
Zoox
48
Tesla
38
May Mobility
15
Source: NHTSA SGO 2021-01 (ADS incident reports).
California disengagement leaders (2025, per 1,000 autonomous miles)
Operator
Auto. miles
Per 1,000 mi
Zoox
1,526,295
0.013
Waymo
7,224,708
0.032
Nuro
158,104
1.54
May Mobility
39,670
9.28
Source: California DMV Autonomous Vehicle Disengagement & Mileage Reports, 2025.
Disengagement rate is the most-cited reliability proxy — and it scales inversely with fleet maturity: the two largest fleets (Waymo, Zoox) post the lowest rates, while small-fleet operators run 50–700× higher. The full Pro brief normalizes these against fleet activity and flags month-over-month movement.
What the full monthly brief adds
Normalized trends (incidents indexed to reported activity, not raw counts)
New-entrant & anomaly alerts — first appearances and unusual month-over-month jumps
Severity & crash-type shifts, with the clean dataset for your own analysis