Interstate commerce is an integral part of Illinois. It helps in the buying and selling of goods and services, which are often transported to another state or country. This type of activity improves the economic competitiveness of Illinois industries in the global marketplace. In addition to global competitiveness, IDOT cares about the safety of all motorists and travelers. State and federal safety regulations require drivers of commercial motor vehicles, including large trucks and motor coaches, to meet certain minimum standards when operating on Illinois interstates and highways. IDOT issues commercial vehicle registration and oversize and overweight permits to ensure the safety of truckers and motorists alike, to protect and preserve our highway infrastructure, and to accommodate commercial operations as conveniently as possible.