Acknowledge, the Passenger (P), School Bus (S), and Tanker (N) endorsement exams can be taken concurrently with the Commercial Learner's Permit test you'll undertake.

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Whereas, the Double/Triple trailers (T), Hazardous Material (H) and Tanker/Hazardous Material (X) endorsement exams require applicants to have a valid Commercial Driver's License or CDL Learner's Permit.