PortsToronto, formerly known as the Toronto Port Authority (TPA), connects Toronto to the world, whether welcoming travellers to and from Toronto through Billy Bishop Toronto City Airport, importing and exporting goods through the Port of Toronto or through the connection made with one's natural surroundings at the Outer Harbour Marina and the Leslie Street Spit. Building on its rich history of public-service, PortsToronto ensures Toronto's Harbour is safe for boaters and visitors, and is responsible for protecting the environment in the Harbour. PortsToronto works with the surrounding community to shape a balanced, thriving and sustainable waterfront where Torontonians and visitors alike can work and enjoy for generations to come. PortsToronto is a financially self-sufficient government business enterprise which operates in accordance with the Canada Marine Act and is guided by a nine-member board with representation from all three levels of government.