You either will have a class M1 license from CA that you can transfer to PA while doing your driver's license transfer, or you do not and will have to take the skills test here.

The skills test can be taken separately after obtaining a Class M permit ($10 fee, vision test, written test) and then taking the skills test or by obtaining a Class M permit and taking the BRC1 (MSF) course and passing the skills test at the end of the course.