The My Name Is Earl actress has been officially charged for the offence by the Santa Monica City Attorney.
Pressly was arrested last month after police performed a sobriety test when
they pulled her over for allegedly committing a traffic violation.
According to gossip website TMZ, the 33-year-old star registered a blood alcohol level of .22 - which is more than three times the legal limit for driving - and could now face up to six months behind bars.
Jaime's charge comes just days after she filed for divorce from her husband of 16 months, entertainment lawyer Simran Singh.
However, the actress is now said to be concerned about how the split will affect her three-year-old son Dezi James, whose father is her former fiancé DJ Eric Calvo.