How do I get a handicap permit, to park inside the park?

I dont believe that they issue park specific tags. State issued version that you use for all othe locations will be fine. Parking locations throughout the park are typically wide open (i.e. you can usually find a spot right where you want to be)

I saw dedicated handicap parking spots in the main lot. Not 100% sure about the smaller ones, but i would imagine they do also.

Go to the Mansion .. that is the main office they can answer any questions about the park.

Each parking area has handicapped parking marked by signs. Parking in these spots requires a handicapped license plate or a handicapped placard displayed in your window!

Handicap parking permits are issued by PennDOT. All parking areas in the park have handicap parking spots.