Starts prevented with an interlock with driver ≥ .08 BAC December 1, 2006 to December 1, 2016
Effective date of current law
Type of Law
10 years 2006-16
Past year 2015-16*
State
Alabama Alaska Arizona Arkansas California Colorado
7/1/2014 1/1/2009 9/1/2007 4/1/2009 7/1/2010 1/1/2009 1/1/2012 1/1/2015 10/8/2016 10/1/2008 5/1/1999 1/1/2011 10/1/2000 1/1/2009 1/1/2015 7/1/1995 7/1/2011 6/25/2015 7/1/2007 12/1/2013 10/1/2016 1/1/2006 10/1/2010 7/1/2011 10/1/2014 3/1/2014 5/1/2009 1/1/2009 7/1/2005 1/1/2016 1/1/2010 6/1/2005 8/1/2010 12/1/2007 9/1/2008 11/1/2011 1/1/2008 10/1/2003 7/1/2016 10/1/2014
All All All All All All All All
1,943
765
11,137 78,849 50,969 195,687 87,058 43,790
1,648
10,245 11,651 35,756 11,010 14,282
Pilot
Connecticut
Delaware
3,861
833
District of Columbia
60
30
Florida Georgia Hawaii Idaho Illinois Indiana
.15 BAC Optional
68,236 26,074
8,925 4,638 1,382
All
7,358 5,607
Repeat
607
All
101,255
6,156 1,780
Optional .10 BAC
7,096
Iowa
104,243 81,126
15,017 11,928
Kansas
All
Kentucky Louisiana
.15 BAC
2,289
869
All All All
74,398 11,670 42,163 31,845 24,193 58,216
15,870
Maine
1,581 5,635 3,577 2,182 6,290 1,647
Maryland
Massachusetts
Repeat .17 BAC .16 BAC
Michigan Minnesota Mississippi Missouri Montana Nebraska
All All
3,862
83,097
11,387
Repeat
5,230
319
All
26,210
3,647
Nevada
.18 BAC
6,222 9,419
855
New Hampshire
All
1,412
New Jersey New Mexico
.15 BAC
56,143 63,911 85,523 16,701 20,535 51,719 41,100 65,575 314
15,002
All All
8,592 7,162 2,183
New York
North Carolina North Dakota
.15 BAC Optional Repeat .15 BAC
28
Ohio
2,883
Oklahoma
12,474
Oregon
All
4,045 5,370 1,104 1,648
Pennsylvania Rhode Island South Carolina
Repeat
All
2,565 4,987
.15 BAC
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