Why does it matter whether the transportation service is a common carrier or not?
The Federal Government and most state governments have specific common carrier regulations. The regulations usually apply to equipment requirements, licensing, transportation procedures, fares and rates, etc. These regulations are enacted to benefit the general public. If a transportation service you are using is a common carrier, they will be required to adhere to these stricter regulations and standards. Federal regulations can be found online. New York regulations and Texas regulations can also be found online.