Definition
The available height, width, or space for a commercial vehicle to pass safely.
Practical example
Example: The route is changed because a bridge is lower than the vehicle's measured height.
Why it matters
Knowing vehicle dimensions prevents bridge strikes, property damage, and route violations.
Clearance in CDL training
CDL students should be able to recognize this term, explain it in plain language, and connect it to safe vehicle operation, inspection, licensing, or freight work as applicable. Review the term in context and practice using it during classroom study and hands-on training.
Frequently asked questions
What does Clearance mean in trucking?
The available height, width, or space for a commercial vehicle to pass safely.
Why should a commercial driver understand Clearance?
Knowing vehicle dimensions prevents bridge strikes, property damage, and route violations.
This glossary is educational. Always follow current federal and state rules, the vehicle manufacturer’s instructions, and your motor carrier’s procedures.