← All states for CDL — Commercial Driver's License
CDL — Commercial Driver's License in Pennsylvania
PennDOT (Driver & Vehicle Services)
📋 Exam facts
Real Pennsylvania exam administration — from the official source
- Practice questions (this site)
- 1281
- Testing agency
- PennDOT
- Real written-test languages
- English · Spanish
- To pass
- 80% (Class A 70 Q; Class B/C 50 Q, 40/50) — federal min
- Fee
- Knowledge test $35 (to confirm on official fee page); CLP $30
- Retake policy
- Knowledge Test Authorization valid 1 yr, 3 attempts, same-day eligible, retake next business day
- Languages note
- CDL knowledge test offered in English and Spanish (Spanish + oral/audio by appointment only). HazMat endorsement test is English only.
✍️ Reviewed by the PassPrep editorial team · How we verify →
🚌 School Bus (S) — additional Pennsylvania requirements
Beyond the federal CDL School Bus knowledge + skills test, this state adds its own school-bus driver credential. (Practice here covers the knowledge test only.)
- Administering agency
- Pennsylvania DMV (PennDOT)
- State credential
- Pennsylvania requires a CDL with both passenger and school-bus endorsements plus state-specific school-bus training; drivers must pass a PA School Bus Physical (Form DL-704) every 13 months.
- Initial training
- 20 hours minimum
- Renewal / in-service
- Every four years, at least 10 hours of refresher training (at least 7 hours classroom + 3 hours in-bus); plus the DL-704 physical every 13 months.
- Other prerequisites
- Be at least 18; complete at least 20 hours of school-bus instruction (at least 14 hours classroom + 6 hours in-bus); pass a vision screening, the required knowledge tests and a road test (including a simulated student discharge and railroad crossing); and clear a PA State Police criminal history check and a PA DHS child-abuse history check.
Languages, fees and rules change — confirm with the official source linked for each state. 待核 / 'To confirm' = not yet confirmed from an official source (shown honestly, never guessed). The 2025 federal English-Language-Proficiency action is roadside out-of-service enforcement, not a state test-language mandate; states set their own written-test languages (Texas and Florida moved to English-only in 2026).