CDL Prep Hub Articles

News, deeper dives, and how-to guides for U.S. CDL applicants.

How Many Questions Are on the CDL Test? (Every Section, 2026)

Read article → Apr 8, 2026

What Is a Passing Score on the CDL Knowledge Test?

Read article → Apr 2, 2026

How to Get a Hazmat (H) Endorsement: 2026 Step-by-Step

Read article → Mar 25, 2026

Class A vs Class B CDL: Which License Should You Get?

Read article → Mar 18, 2026

Tanker Endorsement Test: 7 Questions People Get Wrong

Read article → Mar 11, 2026

School Bus (S) Endorsement: What to Study Before Test Day

Read article → Mar 4, 2026

Air Brake Pre-Trip Inspection Checklist (Printable)

Read article → Feb 25, 2026

DOT Medical Card 2026: What's Changed and What's Not

Read article → Feb 18, 2026

The Top 5 Reasons CDL Applicants Fail the First Time

Read article → Feb 10, 2026

ELDT Entry-Level Driver Training: What You Need to Know

Read article → Feb 4, 2026

Third-Party CDL Testing: Pros, Cons, and How to Find One

Read article → Jan 28, 2026

CDL Driver Pay by State: How Geography Affects Earnings

Read article →