I didn't want to hyjack the previous post, I did put in a comment. I used to haul machinery every day for a living. If you are very far from home, you need to bone up on the law. More than once when stopped for an inspection, I have had to pull out my USDOT rule book and show the officer what the law said. They all don't know the rules. I once was told that this is the way we interpret it. I told him I thought his job was to enforce the letter, not to interpret it. I lost anyway, he found something else to ticket me for. I have asked two officers the same question and gotten two different answers.