HB 335 -- Operation of a Vessel With Excessive Blood-Alcohol Content Sponsor: Lipke Currently, a person commits the crime of operating a vessel with excessive blood-alcohol content when the person operates a vessel on the Mississippi River, Missouri River, or any lake in the state with .1 of 1% or more by weight of alcohol in his or her blood. This bill lowers the level to .08 of 1%.Copyright (c) Missouri House of Representatives