Amanda Bynes has officially been charged with a DUI after her arrest back in April when she sideswiped a cop car and allegedly attempted to flee the scene. Details below.

Marisa Mendez

Bynes has been charged with one count of misdemeanor DUI — and the D.A. has sought a sentencing enhancement because the actress refused to take either a breathalyzer or a blood test.

Bynes has not been charged with hit-and-run.

If convicted — with the sentencing enhancement — we’re told Bynes faces a minimum of 48 hours in jail … and a maximum of 6 months.

But because of jail overcrowding, it’s unlikely Bynes will ever serve longer than a few hours.