Complex sentence: The eligibility of using SmartGate does not exempt travelers from visa obligation, prior to arrival to Australia they still need to obtain eVisitor, ETA, or subclass 600 visas depending on their nationality.
Split into simpler sentences: The eligibility of using SmartGate does not exempt travelers from visa obligations. Prior to their arrival to Australia, they still need to obtain eVisitor, ETA, or subclass 600 visas depending on their nationality.