Program Details On-the-job training (OJT) hours range from 6000 to 8000 depending on the occupation. Provides a unique experience, education, and skill set that prepares you for many positions in your field along with very specialized skills that you can only obtain at PPPL. Full time job at PPPL at a competitive salary and full benefits from Princeton University. Paid tuition and related materials - Will attend class in the evenings (two days a week) for your related technical instruction (RTI) (576 hours), at either one of our current RTI partners: Mercer County Technical School and Mercer County Community College. The best part is no college debt! Daily mentoring by our seasoned professionals. ← Return to Apprenticeship Home