About CLP Study

CLP Study helps future and current commercial drivers prepare for their CDL permit / CLP knowledge tests with a focused, state-specific study plan. Instead of a giant pile of practice links, we show you only the modules that apply to your state and goal, then guide you through practice, a realistic simulator, and readiness tracking.

Our study content is written originally and based on official state CDL manuals. Every question is meant to match permit-test topics and format — never copied from other test providers.

CLP Study is not affiliated with any DMV, state agency, or FMCSA. Study content is based on official state CDL manuals.