What's the Passing Score on New Hampshire's CDL General Knowledge Test?

49 CFR Part 383 sets the CDL general knowledge test at 50 questions and 80% nationwide, and New Hampshire administers that standard rather than writing its own.

Before you can even sit the test, New Hampshire requires you to already hold a valid noncommercial Class D license.

Passing earns you a commercial learner's permit valid for 6 months, but federal rule still requires a mandatory holding period before the skills test, no matter how quickly you passed the written portion.

Entry-level driver training (ELDT) through an authorized provider is also required before your first CDL, regardless of how you scored on the knowledge test.

Air brake PSI thresholds and hours-of-service caps are memorization, not intuition — get the exact number wrong and the question is wrong, no partial credit for being close.

Cargo securement's 50-mile-then-150-mile recheck sequence is a common one to reverse under pressure.

A missed practice question is only useful if you read the full explanation — the correct letter alone teaches nothing.