A: In Pennsylvania , a third offense DUI (General Impairment) means that you have two previous convictions for DUI within the past 10 years and your BAC in this, third offense, is 0.08%-0.099%. This graded as a misdemeanor of the second degree with a mandatory minimum prison sentence of at least 10 days but not more than two years. You would also be required to pay a fine of at least $500.00 but not more than $5,000.00. You also would be issued a license suspension for a period of at least 12 months. You would be required to complete a CRN, D&A evaluation and equip your vehicle(s) with an ignition interlock device for a period of 12 months. There may by other consequences for a conviction of this nature depending upon your driving history and the unique circumstances of your case.