You should be able to electronically file your Pennsylvania return along with your federal and Arizona returns. Since you are a nonresident of Pennsylvania, when you start preparing your state returns, you will need to complete it first.
Once you are done with both state returns and you are going through the File section in TurboTax, the program will ask you to enter your identification information, it can be a state ID or a driver's license. It is part of a national effort by states to combat stolen-identity tax fraud, software programs are asking tax filers to provide their driver's license number or state-issued identification card number with their filing.
Entering your Identification is a state of Pennsylvania requirement. You might also be required to sign your return on paper using Form PA-8453. You will need to mail this form to the Pennsylvania Department of Revenue after they accept your return. The program will guide you on how to print and mail this form.
Feel free to reach back if you have additional questions. See the Pennsylvania website for more information on ID Validation
