Federal and State Testing Requirements
There is no universally binding federal testing standard for autonomous vehicles in the United States. The National Highway Traffic Safety Administration (NHTSA) provides voluntary guidelines, but most AV testing regulations are implemented at the state level, leading to inconsistent safety thresholds from one state to another.
Some states, like California and Arizona, require companies to file disengagement reports that track how often a human safety driver must take control. Others, however, allow AV testing with far less oversight, leading to concerns that vehicles are being deployed before they are thoroughly vetted.
Simulation vs. Real-World Testing
Autonomous vehicle developers rely heavily on simulation testing, running millions of virtual miles to anticipate rare but dangerous scenarios. While simulations are valuable, they cannot fully replicate real-world conditions, such as erratic human behavior, road construction, and weather extremes, which are often the root cause of AV-related accidents.
Testing Transparency and Public Reporting
Another challenge lies in the lack of transparency. While some companies, like Waymo, publish safety reports and detailed testing data, many AV companies are less forthcoming. Consumers and regulators have pushed for mandatory public reporting of test results, disengagements, and known software limitations.
Greater transparency in testing not only builds public trust but also supports legal accountability. If an AV company cannot demonstrate that its vehicles meet minimum safety standards, it may be exposed to additional liability in the event of a crash.
Third-Party Audits and Safety Validation
There is a growing call for independent third-party AV software and systems audits. Like the aviation industry, which requires stringent FAA testing and certifications, advocates argue that AVs should not be fully road-approved without passing impartial safety validations.