What do most state vehicle codes say about driving after taking certain substances?

Driving after taking substances that alter the central nervous system is explicitly prohibited by most state vehicle codes. This regulation is in place to help ensure the safety of all road users, as such substances can impair judgment, coordination, and reaction times. The legal implications focus on the driver’s ability to operate a vehicle safely, which is compromised when influenced by drugs or alcohol.

By emphasizing the effects on the central nervous system, the law aims to prevent accidents and protect both the driver and others on the road, highlighting the fundamental principle that driving requires full cognitive function and motor skills. This regulation applies regardless of age or the legality of the substances in question, demonstrating the commitment to public safety over individual rights to use substances.