Alaska
- No one under the age of 21 is allowed to consume, possess, or control alcoholic beverages except; if a parent gives it to his/her child, or if a guardian gives it to his/her ward, or a legal spouse (wife or husband over 21) gives it to his/her spouse. This may only happen off licensed premises (i.e. not in bars, liquor stores, etc.). Here is an interesting law; any one under 16 year of age is not allowed to enter a place where alcohol beverages are sold, served, or consumed unless with someone who is over 21 years of age. But any one under 21 years of age may be denied entry, or not be served, or may be requested to leave the premises where the alcohol beverages are sold, served, or consumed. To me that seems to be a form of age discrimination especially for 18, 19, and 20 year olds. Anyone under the age of 21 is not allowed to drive a motor vehicle after consuming any quantity of alcohol. For anyone 21 years of age or older may not drive if they have a BAC of .08 or higher.
Colorado
- No one under the age of 21 is allowed to consume or possess alcohol unless a parent or guardian gives permission for their child or ward to drink, but only on private property and under the supervision of the parent or guardian. Anyone under the age of 21 can't drive any motor vehicle with a BAC of .02 but less than a BAC of .05. Anyone 21 years of age or older may not drive if they have a BAC of .10 or higher.
Georgia
- No one under 21 year of age is allowed to possess alcohol (therefore you can't drink it either) unless at home when the parent or guardian gives it to his/her child or ward and the parent or guardian is present (supervising). It's illegal to drive a motor vehicle with a BAC of .02 or higher if under the age of 21. For anyone 21 years of age or older may not drive if they have a BAC of .08 or higher.
Indiana
- No one under the age of 21 years is allowed to consume, transport, or possess alcohol. But he/she is allowed to consume, transport, or posses alcohol when supervised by the parent or guardian. Something also interesting, no one under the age of 18 is allowed in tavern, bar, or other public place where alcoholic beverages are sold, bartered, exchanged, given away, provided, or furnished. But is allowed when the child is with a parent, guardian, trustee, or other person having custody of the child, and who is older that 21 years of age. This law does not apply to places like a sports arena, convention center, and etc. (the complete list is found at the given link below). Anyone under the age of 21 can not drive any motor vehicle with a BAC of .02 but less than a BAC of .08. For anyone 21 years of age or older can not drive if they have a BAC of .08 but less than a BAC of .15.
Iowa
- No one under the age of 21 is allowed to consume or posses alcohol, unless at a private home when the parent or guardian gives it to his/her child or ward and the said parent or guardian is present (supervising). Also anyone under the age of 21 can not drive any motor vehicle with a BAC of .02 or higher. For anyone 21 years of age or older may not drive if they have a BAC of .10 or higher.
New York
- No one under the age of 21 is allowed to buy or posses alcohol. But you can drink alcohol if you are a student in a curriculum licensed or registered by the state education department and is required to taste or imbibe alcoholic beverages in courses which are part of the required curriculum. Also you can consume alcohol if it is give to you by your guardian or parent.
Ohio
- No one under the age of 21 is allowed to possess or consume any alcohol in any public or private place, unless the underage person is accompanied by a parent, spouse who is not an underage person, or legal guardian. Also anyone under the age of 18 is not allowed to possess or consume any low-alcohol beverage in any public or private place, unless accompanied by a parent, spouse who is not an underage person, or legal guardian. The limit of intoxication to drive a vehicle for someone under 21 years of age is a concentration of at least two-hundredths of one gram but less than ten-hundredths of one gram by weight of alcohol per two hundred ten liters of the person's breath. For everyone 21 years of age or more it's concentration of ten-hundredths of one per cent or more but less than seventeen-hundredths of one per cent by weight of alcohol in the person's blood.
South Dakota
- No one under the age of 21 is allowed to purchase, possess, or consume alcohol. But an 18 year old or older can drink alcohol if done in the immediate presence of a parent or guardian or spouse over twenty-one years of age. Also if under18 years old you can still drink alcohol as long it's in the immediate presence of a parent or guardian or spouse, who is at least twenty-one years of age, while not on the premises of an establishment licensed for the retail sale of alcoholic beverages. Also anyone under the age of 21 can not drive any motor vehicle with a BAC of .02 or higher. For anyone 21 years of age or older may not drive if they have a BAC of .10 or higher.
Texas
- No one under the age of 21 is allowed to purchase, posses, or consume alcohol. Possession and consumption of alcohol is legal for minors if under the supervision of a parent, guardian or spouse. Anyone under the age of 21 can not drive a motor vehicle with any traceable amounts of alcohol in the blood stream. I couldn't find the legal BAC limit for 21 year olds and older.
National Youth Rights Association - Drinking Age and Alcohol Laws for All 50 States
