The Port Authority of New York and New Jersey manages and maintains bridges, tunnels, bus terminals and airports. It operates several transportation links, including John F. Kennedy International Airport, Newark Liberty International Airport, LaGuardia Airport, Stewart International Airport and Teterboro Airport in the United States. For more than 80 years, the Port Authority of New York and New Jersey has been working to improve the quality of life of over 15 million people who live and work in New York and New Jersey. The authority relies primarily on revenue generated from facility operations, tolls from its bridges and tunnels between New York and New Jersey, user fees from airports and bus terminals, and rent from facility business and consumer services. The Port Authority of New York and New Jersey s 7,000 employees are experts in aviation, rail transit, maritime businesses, transportation, engineering, law, communications, public safety and finance.