Clauses 3, 19, 30 and 47, together with the new Schedules, set out the definitions for an "essential transport service" under each sector, by listing out the key services necessary for Singapore's air, land and sea transport networks. For land, we intend to include, among other things, public bus and rail services. For aviation, we plan to include, among other things, airport and ground-handling operations and passenger and cargo air services at Changi Airport. For maritime, we plan to include, among other things, port and marine services and facilities, as well as services which support the provision of sea transport, such as water supply and bunkering.