The ordered probit models were used to determine the preferences of car drivers on safety perception of using a cellular phone while driving and attitudes toward legislation against the use of a cellular phone in a moving vehicle. This research conducted a telephone survey and randomly selected 400 car drivers in Taichung area. The results indicate that drivers perceive that using a hand-held phone in a vehicle has an increased risk of having a traffic accident, compared to drivers who use a hands-free phone. However, the difference of perceived risks associated with drivers using a cellular phone while driving on freeways or arterial roads is insignificant. Drivers, who are female, married with young children, and less frequent use of cellular phones while driving, are likely to support the laws that ban the use of hand-held cellular phones while driving. Implications on regulation, education, enforcement and technology are discussed.