The notion that drivers can be impaired by alcohol without being legally drunk has been held for a long time. As such, many states (including Massachusetts) have statutes imposing criminal penalties for operating under the influence of drugs or other mind-altering substances.
While all 50 states and the District of Columbia follow the legal standard of criminalizing blood alcohol contents of .08 and above, that standard may change after the National Transportation Safety Board released a set of recommendations regarding drunk driving.



