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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: J Health Econ. 2009 Oct 30;29(1):48–61. doi: 10.1016/j.jhealeco.2009.10.002

Table 3.

GDL Policies and Data availability for the 12 states used in the analysis

States Years of Data Availability Year of GDL Adoption IIHS Ranking Notes
AR 1998–2005 2002 Marginal
CA 1991–2004 1998 Good
FL 1991–2004 1996 Marginal in 2000 changed to Fair
IL 1991–2003 1998 Marginal
MD 1991–2005 1999 Marginal in 2005 changed to Good
MI 1991–2005 1997 Fair
MO 1991–2005 2001 Marginal
MT 1994–2005 no GDL until 2005 adopted GDL in 2006
NM 1990–2005 2000 Good
PA 1991–2005 1999 Fair
VA 1991–2004 1999 Fair in 2001 changed to Good
WA 1999–2005 2001 Good

Notes:

1. Illinois, 1996 is not used in the analysis since it contains only “state maintained road crashes” (page B-2 of user manual)

2. Washington 1999–2000 are not used in the analysis since they contain only “state route crashes” (page 4 of user manual)