You arrive at a state line and aren't sure if triple trailers are permitted ahead. What should you do?
Pick an answer
Correct!
Not quite. The correct answer is highlighted.
Correct answer to question 42 (Doubles/Triples): Confirm the route's rules before continuing, since some states restrict or prohibit triples entirely
Why
Triple-trailer permissions vary by state and even by specific highway, so a route that was fine in one state can be restricted in the next, making it worth confirming before crossing rather than assuming.
Updated: November 2026