Actual federal weight law rules, some questions and answers

Since I needed to get a VIN Verification done, I asked one of the CHP Weigh Station Officer's while I was there. He said they don't usually target RV's unless they are involved in an accident with major injuries, fatalities, or they see one and it looks unsafe. I showed him this post - he said very careful - it only applies on Interstate Highways, not State Highways, nor County/City roadways. same for towing triples - in California it is only allowed on Interstate Highways, not on State/County/City highways or roadways.