Getting ready for harvest means there’s a long checklist of things to do. At the top should be ensuring that trucks, semis and other equipment are safe for transportation, says Officer Robert Wittkowski of the Iowa Department of Transportation’s Motor Vehicle Enforcement division.

“Safety should always be our main concern on our checklist,” according to Wittkowski, who was recently featured in an Iowa Farm Bureau-hosted webinar about transportation rules.

So, what, specifically, should be checked prior to harvest?

Officer Wittkowski says to check equipment,...