There are three categories of Pennsylvania drunk driving penalties that apply depending upon the levels of blood alcohol concentration recorded at the time of dui arrest. The three BAC levels are “0.16 And Above”, “between 0.10 and 0.159”, and “between 0.08 and 0.099”. It is also important to note that refusal to take the chemical test to determine BAC level when you are stopped under the suspicion of drunk driving is considered as very serious offence, and like many other states, in Pennsylvania also, it attracts much harsher penalties than the actual dui conviction. The exact details of the penalties are subject to the court judgment.