Blood Alcohol Concentration (BAC) Limits

Youth (Underage Operators of Noncommercial Motor Vehicles)

Laws addressing blood alcohol concentration limits applicable to drivers of noncommercial automobiles, trucks, and motorcycles who have not reached the legal drinking age of 21 years.

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Timeline of changes for Youth (Underage Operators of Noncommercial Motor Vehicles)
Jurisdiction1998199920002001200220032004200520062007200820092010201120122013201420152016201720182019
Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1
AlabamaNo Change
AlaskaNo Change
ArizonaNo Change
ArkansasNo Change
CaliforniaNo Change
ColoradoNo Change
ConnecticutNo Change
Delaware  
  • Jurisdiction: Delaware
  • Effective Date of Change: 7/14/1998
  • Change: Evidentiary rule changed to per se
  • Details
                                                                                  
District of ColumbiaNo Change
FloridaNo Change
GeorgiaNo Change
HawaiiNo Change
IdahoNo Change
IllinoisNo Change
IndianaNo Change
IowaNo Change
KansasNo Change
KentuckyNo Change
LouisianaNo Change
MaineNo Change
Maryland               
  • Jurisdiction: Maryland
  • Effective Date of Change: 10/1/2001
  • Change: BAC level decreased from 0.02 to 0
  • Details
                                                                     
MassachusettsNo Change
MichiganNo Change
MinnesotaNo Change
Mississippi  
  • Jurisdiction: Mississippi
  • Effective Date of Change: 7/1/1998
  • Change: BAC level decreased from 0.08 to 0.02
  • Details
                                                                                  
MissouriNo Change
MontanaNo Change
NebraskaNo Change
NevadaNo Change
New HampshireNo Change
New JerseyNo Change
New MexicoNo Change
New YorkNo Change
North CarolinaNo Change
North DakotaNo Change
OhioNo Change
OklahomaNo Change
OregonNo Change
PennsylvaniaNo Change
Rhode IslandNo Change
South Carolina 
  • Jurisdiction: South Carolina
  • Effective Date of Change: 6/29/1998
  • Change: BAC limit law adopted
  • Details
                                                                                   
South Dakota  
  • Jurisdiction: South Dakota
  • Effective Date of Change: 7/1/1998
  • Change: BAC limit law adopted
  • Details
                                                                                  
Tennessee                                                                          
  • Jurisdiction: Tennessee
  • Effective Date of Change: 9/19/2016
  • Change: Other provision changed
  • Details
          
TexasNo Change
UtahNo Change
VermontNo Change
VirginiaNo Change
WashingtonNo Change
West VirginiaNo Change
WisconsinNo Change
Wyoming  
  • Jurisdiction: Wyoming
  • Effective Date of Change: 7/1/1998
  • Change: BAC limit law adopted
  • Details
                                                                                  
United StatesNo Change