Blood Alcohol Concentration (BAC) Limits

Adult Operators of Noncommercial Motor Vehicles

Laws addressing blood alcohol concentration limits applicable to drivers of noncommercial automobiles, trucks, and motorcycles who have reached the legal drinking age of 21 years.

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Changes Over Time for Adult Operators of Noncommercial Motor Vehicles
Jurisdiction Date Range BAC Limit Per Se Citations
Alaska (1407)
1/1/1998 - 8/31/20010.10Yes
Alaska (1403)
9/1/2001 - 1/1/20190.08Yes2 Citations
Arizona (1410)
1/1/1998 - 8/30/20010.10Yes
Arizona (1404)
8/31/2001 - 1/1/20190.08Yes2 Citations
Arkansas (1409)
1/1/1998 - 8/12/20010.10Yes
Arkansas (1355)
8/13/2001 - 1/1/20190.08Yes2 Citations
Colorado (1412)
1/1/1998 - 6/30/20040.10Yes
Colorado (1357)
7/1/2004 - 1/1/20190.08Yes2 Citations
Connecticut (1413)
1/1/1998 - 6/30/20020.10Yes
Connecticut (1358)
7/1/2002 - 1/1/20190.08Yes2 Citations
Delaware (1415)
1/1/1998 - 7/11/20040.10Yes
Delaware (1360)
7/12/2004 - 1/1/20190.08Yes2 Citations
District of Columbia (1414)

Section designations in the District of Columbia Code were renumbered in connection with the publication of the D.C. Official Code, 2001 Edition.

1/1/1998 - 4/12/19990.10Yes
District of Columbia (1359)

Section designations in the District of Columbia Code were renumbered in connection with the publication of the D.C. Official Code, 2001 Edition.

4/13/1999 - 1/1/20190.08Yes5 Citations
Georgia (1418)
1/1/1998 - 6/30/20010.10Yes
Georgia (1417)
7/1/2001 - 1/1/20190.08Yes2 Citations
Indiana (1423)
1/1/1998 - 6/30/20010.10Yes
Indiana (1401)
7/1/2001 - 1/1/20190.08Yes2 Citations
Iowa (1420)
1/1/1998 - 6/30/20030.10Yes
Iowa (1365)
7/1/2003 - 1/1/20190.08Yes2 Citations
Kentucky (1425)
1/1/1998 - 9/30/20000.10Yes
Kentucky (1367)
10/1/2000 - 1/1/20190.08Yes2 Citations
Louisiana (1426)
1/1/1998 - 9/29/20030.10Yes
Louisiana (1368)
9/30/2003 - 1/1/20190.08Yes2 Citations
Maryland (1428)
1/1/1998 - 9/29/20010.10Yes
Maryland (1370)
9/30/2001 - 1/1/20190.08Yes3 Citations
Massachusetts (1427)
1/1/1998 - 6/29/20030.08 
Massachusetts (1399)
6/30/2003 - 1/1/20190.08Yes2 Citations
Michigan (1430)
1/1/1998 - 9/29/20030.10Yes
Michigan (1371)
9/30/2003 - 1/1/20190.08Yes2 Citations
Minnesota (1431)
1/1/1998 - 7/31/20050.10Yes
Minnesota (1372)
8/1/2005 - 1/1/20190.08Yes2 Citations
Mississippi (1433)
1/1/1998 - 6/30/20020.10Yes
Mississippi (1373)
7/1/2002 - 1/1/20190.08Yes2 Citations
Missouri (1432)
1/1/1998 - 9/28/20010.10Yes
Missouri (1374)
9/29/2001 - 1/1/20190.08Yes2 Citations
Montana (1434)
1/1/1998 - 4/14/20030.10Yes
Montana (1375)
4/15/2003 - 1/1/20190.08Yes2 Citations
Nebraska (1437)
1/1/1998 - 8/31/20010.10Yes
Nebraska (1376)
9/1/2001 - 1/1/20190.08Yes3 Citations
Nevada (1441)
1/1/1998 - 9/22/20030.10Yes
Nevada (1377)
9/23/2003 - 1/1/20190.08Yes2 Citations
New Jersey (1439)
1/1/1998 - 1/19/20040.10Yes
New Jersey (1379)
1/20/2004 - 1/1/20190.08Yes3 Citations
New York (1442)
1/1/1998 - 6/30/20030.10Yes
New York (1381)
7/1/2003 - 1/1/20190.08Yes3 Citations
North Dakota (1436)
1/1/1998 - 8/26/20030.10Yes
North Dakota (1383)
8/27/2003 - 1/1/20190.08Yes2 Citations
Ohio (1443)
1/1/1998 - 6/29/20030.10Yes
Ohio (1384)
6/30/2003 - 1/1/20190.08Yes2 Citations
Oklahoma (1444)
1/1/1998 - 6/30/20010.10Yes
Oklahoma (1385)
7/1/2001 - 1/1/20190.08Yes2 Citations
Pennsylvania (1446)
1/1/1998 - 9/29/20030.10Yes
Pennsylvania (1387)
9/30/2003 - 1/1/20190.08Yes2 Citations
Rhode Island (1447)
1/1/1998 - 7/12/20000.10Yes
Rhode Island (1388)
7/13/2000 - 1/1/20190.08Yes3 Citations
South Carolina (1448)
1/1/1998 - 12/31/20000.10 
South Carolina (1405)
1/1/2001 - 8/18/20030.10Yes
South Carolina (1400)
8/19/2003 - 1/1/20190.08Yes2 Citations
South Dakota (1449)
1/1/1998 - 6/30/20020.10Yes
South Dakota (1389)
7/1/2002 - 1/1/20190.08Yes2 Citations
Tennessee (1450)
1/1/1998 - 6/30/20030.10Yes
Tennessee (1390)
7/1/2003 - 1/1/20190.08Yes2 Citations
Texas (1451)
1/1/1998 - 8/31/19990.10Yes1 Citations
Texas (1391)
9/1/1999 - 1/1/20190.08Yes3 Citations
Utah (4121)
1/1/1998 - 12/29/20180.08Yes2 Citations
Utah (1392)
12/30/2018 - 1/1/20190.05Yes3 Citations
Washington (1455)
1/1/1998 - 12/31/19980.10Yes
Washington (1395)
1/1/1999 - 1/1/20190.08Yes2 Citations
West Virginia (1457)
1/1/1998 - 5/4/20040.10Yes
West Virginia (1396)
5/5/2004 - 1/1/20190.08Yes2 Citations
Wisconsin (1456)
1/1/1998 - 9/29/20030.10Yes1 Citations
Wisconsin (1397)
9/30/2003 - 1/1/20190.08Yes3 Citations
Wyoming (1458)
1/1/1998 - 6/30/20020.10Yes
Wyoming (1398)
7/1/2002 - 1/1/20190.08Yes2 Citations