Objective: We studied the frequency of designated driver use, predicto
rs of designated driver use, whether designated drivers use alcohol, a
nd barriers to using a designated driver. Method: Undergraduates at Ar
izona State University (N = 544) completed a questionnaire assessing d
esignated driver use. The mean age of participants was 20.6 years old
and 52% were male. Criterion for inclusion in the study was that parti
cipants had consumed alcohol at least one time. Results: Eighty-six pe
rcent (86%) of participants had used a designated driver. Monthly alco
hol use and driving to drinking destinations were positively associate
d with designated driver use. Ninety-four percent of participants indi
cated that their designated driver occasionally consumed alcohol. The
most frequent reason for not using a designated driver was, ''I stayed
where I was drinking until I was sober'' (37%). Less alcohol use amon
g friends was associated with sounder methods of designated driver sel
ection. Conclusions: Findings suggest those groups at risk for alcohol
-related driving accidents tend to use designated drivers at high rate
s, but these groups tend to choose designated drivers who consume alco
hol.