How does a law prohibiting the driver from using a radio restrict our ability to "transport our mobile radios across state and local boundaries for the purpose of transmitting on authorized frequencies"? Nothing in the law prohibits possession or transporting of radio equipment. It doesn't even prevent its usage while rolling down state highways, it only prohibits the driver from using his hands to operate the device, while moving. Driving a motor vehicle falls under state laws. Operating a ham radio falls under FCC laws. Having an FCC license doesn't exempt you from any driving law, whether or not that law is based on facts or supposition. The way to attack these laws is not through calling for an FCC pre-emption (which will never happen), but to get the laws themselves to exempt ham radio operation. There is nothing in 91-36 that indicates that the FCC has any role over motoring laws. They do have some power over equipment possession and transport issues. That is what 91-36 is all about.