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)
Jurisdiction19981999200020012002200320042005200620072008200920102011201220132014201520162017
Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1
AKNo Change
ALNo Change
ARNo Change
AZNo Change
CANo Change
CONo Change
CTNo Change
DCNo Change
DE  
  • Jurisdiction: Delaware
  • Effective Date of Change: 7/14/1998
  • Change: Evidentiary rule changed to per se
  • Details
                                                                          
FLNo Change
GANo Change
HINo Change
IANo Change
IDNo Change
ILNo Change
INNo Change
KSNo Change
KYNo Change
LANo Change
MANo Change
MD               
  • Jurisdiction: Maryland
  • Effective Date of Change: 10/1/2001
  • Change: BAC level decreased from 0.02 to 0
  • Details
                                                             
MENo Change
MINo Change
MNNo Change
MONo Change
MS  
  • Jurisdiction: Mississippi
  • Effective Date of Change: 7/1/1998
  • Change: BAC level decreased from 0.08 to 0.02
  • Details
                                                                          
MTNo Change
NCNo Change
NDNo Change
NENo Change
NHNo Change
NJNo Change
NMNo Change
NVNo Change
NYNo Change
OHNo Change
OKNo Change
ORNo Change
PANo Change
RINo Change
SC 
  • Jurisdiction: South Carolina
  • Effective Date of Change: 6/29/1998
  • Change: BAC limit law adopted
  • Details
                                                                           
SD  
  • Jurisdiction: South Dakota
  • Effective Date of Change: 7/1/1998
  • Change: BAC limit law adopted
  • Details
                                                                          
TN                                                                          
  • Jurisdiction: Tennessee
  • Effective Date of Change: 9/19/2016
  • Change: Other provision changed
  • Details
  
TXNo Change
UTNo Change
VANo Change
VTNo Change
WANo Change
WINo Change
WVNo Change
WY  
  • Jurisdiction: Wyoming
  • Effective Date of Change: 7/1/1998
  • Change: BAC limit law adopted
  • Details
                                                                          
USNo Change