According to DuBois-based State Police, 29-year-old Timothy Daniel Marshall, of DuBois, was stopped for a summary traffic violation.
While speaking to Marshall during the stop, a strong odor of marijuana was allegedly present coming from the vehicle, police say.
A search of the vehicle allegedly yielded a small amount of marijuana, according to police.
Marshall was subsequently arrested for DUI, possession of a small amount of marijuana with charges pending blood results, police say.
He also faces summary traffic violations, according to police.