Relating to substances that constitute an intoxicant when operating a vehicle.

Expands offense of driving while under influence of intoxicants to include any substance that, when taken into human body, can impair the ability of person to operate vehicle safely. Defines "intoxicant" for purposes of Oregon Vehicle Code. Permits conviction of driving while under influence of intoxicants even if accusatory instrument does not plead fact that person was under influence of controlled substance or inhalant.