Traffic rules in America are very strict: all the lovers of alcohol can get to prison for a term from six months and up to one year, as well as being subjected to prolonged deprivation of a driver's license. The allowable blood alcohol content makes up 0.8 ppm (for drivers over 21 years old). The driver caught drunk for the first time (who has not caused the accident), gets a fine of $300 and the deprivation of a license for six months. It is important to know that a driver can only be stopped in a case of violation of the rules.
If the driver comes across a police officer in a drunk state for the second time in ten years, the penalty can be raised up to five thousand dollars, in the third time - up to 10 thousand dollars. If the drunk driver has caused fatal accidents, he will get 10 years of imprisonment, but the laws vary in each particular state. Read about why accused in drunk driving in the US face the problems at the Canadian border.