Commercial truckers are forbidden from using cell phones while driving a heavy truck. This according to the Federal Motor Carrier Safety Administration. Cell phones have been connected with distracting drivers and causing accidents. This may be one of the most violated rules on the highways and causes as much carnage as any violation. For this reason, an experienced trucking lawyer will subpoena all cell phone records from the driver involved in the collision to see if and to whom he was talking around the time of the collision.