An "exempt" sign means that bus and truck drivers, who are usually required to stop at railroad crossings, may proceed ...

Sgt. Jesse Grabow of the Minnesota State Patrol answers your questions about highway and driving rules and safety.

Question: The other day I came across a railroad crossing sign with the word “EXEMPT” placed on it. What is that all about?

An "exempt" sign means that bus and truck drivers, who are usually required to stop at railroad crossings, may proceed without stopping. However, drivers still need to look in both directions for ...