A person commits the criminal offense of intoxication assault if the person operates a motor vehicle while intoxicated and causes an accident that results in the serious bodily injury of another person.

Some states have a broader definition of intoxication assault and may charge an intoxicated person who negligently causes serious bodily injury to another person while operating a motor vehicle, an aircraft, a watercraft, or an amusement ride with the crime of intoxication assault.

Intoxication assault is a felony offense and may be punished by significant jail or prison time. Intoxication assault laws are generally located in a state's statutes—often in the penal or criminal code.

In Florida, the criminal offense similar to 'intoxication assault' is typically referred to as 'DUI (Driving Under the Influence) with Serious Bodily Injury.' Under Florida law, a person commits this offense if they are driving under the influence of alcohol or controlled substances to the extent that their normal faculties are impaired, and they cause an accident that results in the serious bodily injury of another person. Serious bodily injury is defined as an injury that creates a substantial risk of death, serious personal disfigurement, or protracted loss or impairment of the function of any bodily member or organ. This offense is a third-degree felony in Florida and is punishable by up to 5 years in prison, a fine of up to $5,000, or both. Additionally, the offender's driver's license can be revoked, and they may be required to complete a DUI substance abuse course and community service. The relevant statutes can be found in the Florida Statutes, specifically in Chapter 316 concerning state uniform traffic control and Chapter 775 defining the penalties.