Starting a career as a professional truck driver can be rewarding and provide lifelong opportunities.
But before you get behind the wheel of a big rig in Pennsylvania, you’ll need to earn your Commercial Learner’s Permit (CLP) — the first step toward your Commercial Driver’s License (CDL).
Whether you plan to attend a company-sponsored training program, enroll in a private CDL school like the CNS Driver Training Center, or complete training out of state, this guide will walk you through every step — from permit requirements to written testing and professional CDL training.
1. Gather the Required PennDOT Documents
Bring the following documents when applying at a PennDOT Driver License Center:
- DL-31CD: Application for Commercial Learner’s Permit
- DL-11CD: Self-certification form (submit your medical card if required)
- Proof of identity and residency — e.g., birth certificate, passport, or approved documents
- Social Security Number
- DOT Medical Examiner’s Certificate, if operating in non-excepted commerce
- Pass a vision test (included in your DOT physical if already completed)
Pro Tip: CNS Occupational Medicine at our Lititz headquarters offers DOT Physicals.
2. Study the Pennsylvania CDL Manual
Download and study the Pennsylvania CDL Manual to prepare for the written knowledge tests.
You’ll need to understand:
- General Knowledge
- Combination Vehicles
- Air Brakes
- Pre-Trip Inspections
- Vehicle Control and On-Road Safety
Use practice tests and video resources like this 60-Question CDL Knowledge Test video for extra preparation.
3. Apply for Your Knowledge Test Authorization (KTA)
When you’re ready to test:
- Submit your CDL forms and fees at a PennDOT Driver License Center.
- Receive your Knowledge Test Authorization (KTA), which allows you to take the written tests for your CDL class and endorsements.
4. Pass the CDL Written Knowledge Tests
To earn your CLP, you must pass the following:
- General Knowledge Test – 70 questions
- Combination Vehicle Test
- Air Brakes Test (if applicable)
Once you pass, PennDOT will issue your Commercial Learner’s Permit (CLP), valid for 180 days. You can now start behind-the-wheel CDL training with a certified instructor at CNS Driver Training Center.
Out-of-State CDL Training Steps
- Pass the written test and obtain your CLP in your home state.
- Travel to another state for CDL training and skills testing.
- Your test results are transmitted via the AAMVA CSTIMS portal to your home state DMV.
- Your home state will issue your CDL based on those results.
Get Started with Professional CDL Training
Ready to start your trucking career? The CNS Driver Training Center is here to help you every step of the way — from permit prep to road test success.
If you have questions about our CDL training packages, give us a call at 717-496-9145 or email us at support@cnstrains.com.
Not sure where to start? Enroll in our FREE CDL Permit Prep Course for expert study help and test preparation.
