As we know in the trucking industry, some trailers are part of large trucks, which we call semi-trailer trucks for transportation of cargo. Trailers may also be used in a personal manner as well, whether for personal or small business purposes.

In 1933, as a part of President Franklin D. Roosevelt’s “New Deal”, the National Recovery Administration requested that each industry creates a “code of fair competition”. The American Highway Freight Association and the Federated Trucking Associations of America met in the spring of 1933 to speak for the trucking association and begin discussing a code. By summer of 1933 the code of competition was completed and ready for approval. The two organizations had also merged to form the American Trucking Associations. The code was approved on February 10, 1934. On May 21, 1934, the first president of the ATA, Ted Rogers, became the first truck operator to sign the code. A special "Blue Eagle" license plate was created for truck operators to indicate compliance with the code.

A Ministry of Transport (or) Transportation is responsible for transportation within a country. Administration usually falls upon the Minister for Transport. The term may also be applied to the departments or other government agencies administering transport in a nation who do not use ministers. There are various and vast responsibilities for agencies to oversee such as road safety. Others may include civil aviation, maritime transport, rail transport and so on. They continue to develop government transportation policy and organize public transit. All while trying to maintain and construct infrastructural projects. Some ministries have additional responsibilities in related policy areas as mentioned above.