Investigations
Certification
NHTSA Audit Query AQ23001 — closed, opened 2023-03-03.
NHTSA investigation AQ23001 is a Audit Query opened on 2023-03-03 and currently closed. The subject is tracked inside the Office of Defects Investigation queue. Latest activity on this investigation was logged on 2025-08-04 — NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
An Audit Query like AQ23001 is how NHTSA checks that manufacturers are meeting their statutory obligations — things like notifying owners, reporting foreign recalls, and tracking remedy completion rates under TREAD and FMVSS requirements.
Investigators summarized the matter as follows: "In July 2022, Zoox announced that it had certified a self-driving vehicle as being compliant with all applicable FMVSS. Zoox described these “purpose-built” vehicles as bi-directional, equipped with an automated driving..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time.
Investigation Summary
In July 2022, Zoox announced that it had certified a self-driving vehicle as being compliant with all applicable FMVSS. Zoox described these “purpose-built” vehicles as bi-directional, equipped with an automated driving system, and lacking traditional driving controls. Zoox was an outlier in the industry, having self-certified these vehicles rather than seeking an available exemption. Publicly available materials depicting Zoox’s vehicles suggested that they may not be compliant with certain FMVSS. On September 6, 2022, NHTSA issued a Special Order directing Zoox to answer certain questions and provide information relating to the company’s basis for certifying that the vehicle met all applicable FMVSS. Zoox responded to the Special Order on November 7, 2022. Based on Zoox’s response and other available information, NHTSA opened this Audit Query (AQ23001) on March 3, 2023, to examine the process and technical data on which Zoox relied when certifying the Zoox vehicle and related issues. During this investigation, NHTSA continued its evaluation of information provided by Zoox regarding its vehicles and basis of certification. NHTSA additionally conducted an on-site inspection of two Zoox vehicles. In December 2024, NHTSA issued Zoox an inspection report documenting its findings, which included multiple apparent noncompliances with applicable FMVSS. Following dialogue with the agency during the course of this investigation, Zoox decided to apply for an FMVSS exemption for the subject vehicles. Specifically, in June 2025, Zoox requested an exemption under § 30114(a) for the purposes of demonstration of its purpose-built vehicles. NHTSA carefully evaluated Zoox’s exemption request under the agency’s Automated Vehicle Exemption Program. On August 4, 2025, NHTSA granted Zoox an exemption subject to certain conditions, including that Zoox obscure or remove all existing statements that the purpose-built vehicle complies with or conforms to all applicable FMVSS. This exemptio
About This Investigation Type
An Audit Query (AQ) is conducted to verify manufacturer compliance with safety standards and recall requirements.
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. Learn more.
Read our methodology — how this data is sourced, computed, and verified.