Visa is required for periods of transit longer than 3 hours. [visa form]
Transit for periods of 3 hours or less does not require a visa.
Exemption: Please note that citizens of countries listed below do NOT need visas, regardless of the length of transit period
Antigua & Barbuda, Argentina, Australia, Austria, The Bahamas, Bangladesh, Barbados, Belgium, Belize, Bermuda, Botswana, Brazil, Brunei Darussalam, Bulgaria, Canada, Chile, China, Colombia, Cook Islands [NZ passport holder] Cyprus, Czech Republic, Denmark, Commonwealth Dominica, Estonia, The federal Republic of Germany, The federated States of Micronesia, Finland, France, The Gambia, Ghana, Greece, Grenada, Guyana, Holy See (Vatican), Hong Kong [SAR] Hungary, Iceland, India, Indonesia, Israel, Italy, Jamaica, Japan, Kenya, Kiribati, Latvia, Liechtenstein, Lesotho, Luxemburg, Malawi, Malaysia, Maldives, Malta, Mauritius, Mexico, Moldova, Monaco, Nauru, The Netherlands, New Zealand, Nigeria, Norway, Palau, Papua New Guinea, Paraguay, Peru, The Philippines, Poland, Portugal, Republic of Ireland, Republic of the Marshall Islands, Romania, Russia, Samoa, Serbia, Slovak Republic, St Kitts & Nevis, St Lucia, St Vincent & The Grenadines, Seychelles, Sierra Leone, Singapore, Slovenia, Solomon Islands, South Africa, South Korea, Spain, Swaziland, Sweden, Switzerland, Taiwan, Tanzania, Thailand, Tonga, Trinidad & Tobago, Tunisia, Turkey, Tuvalu, Uganda, United Arab Emirates, Ukraine, United Kingdom of great Britain and Northern Ireland, United States of America, Uruguay, Vanuatu, Venezuela, Zambia and Zimbabwe.
All other immigration related forms.