NTSB wants all new vehicles to check drivers for alcohol use

The recommendation also calls for systems to monitor a driver's behavior,
making sure they're alert. She said many cars now have cameras pointed at
the driver, which have the potential to limit impaired driving.

But Homendy says she also understands that perfecting the alcohol tests will
take time. "We also know that it's going to take time for NHTSA to evaluate
what technologies are available and how to develop a standard."

https://www.npr.org/2022/09/20/1124171320/autos-drunk-driving-blood-alcohol-system-ntsb

Interesting there's no mention of developments in driver …

alcohol drivers