A visa is a conditional authorization granted by a polity to a foreigner that allows them to enter, remain within, or leave its territory. Visas typically include limits on the duration of the foreigner's stay, areas within the country they may enter, the dates they may enter, the number of permitted visits, or if the individual can work in the country in question. Visas are associated with the request for permission to enter a territory and thus are, in most countries, distinct from actual formal permission for an alien to enter and remain in the country. In each instance, a visa is subject to entry permission by an immigration official at the time of actual entry and can be revoked at any time. Visa evidence most commonly takes the form of a sticker endorsed in the applicant's passport or other travel document but may also exist electronically. Some countries no longer issue physical visa evidence, instead recording details only in immigration databases.
The visa policy of Australia deals with the requirements that a foreign national wishing to enter Australia must meet to obtain a visa, which is a permit to travel, to enter and remain in the country. A visa may also entitle the visa holder to other privileges, such as a right to work, study, etc. and may be subject to conditions.
Visitors to the United States must obtain a visa from one of the U.S. diplomatic missions unless they are citizens of one of the visa-exempt or Visa Waiver Program countries.
The visa policy of mainland China deals with the requirements which a foreign citizen wishing to enter the mainland of the People's Republic of China must meet to obtain a visa from one of the Chinese diplomatic missions, which is a permit to travel to, enter, and remain in the country. Visa exemptions are based on bilateral agreements and unilateral decisions.
The visa policy of Canada requires that any foreign citizen wishing to enter Canada must obtain a temporary resident visa from one of the Canadian diplomatic missions unless they hold a passport issued by one of the 53 eligible visa-exempt countries and territories or proof of permanent residence in Canada or the United States.
Most visitors to Indonesia may obtain a visa on arrival to Indonesia, unless they are a citizen of one of the visa-exempt countries. However, some countries must obtain a visa in advance from one of the Indonesian diplomatic missions before being allowed to enter Indonesia.
Visa requirements for Chinese citizens are administrative entry restrictions imposed on citizens of China residing in the Mainland by the authorities of other states.
Visa requirements for Indonesian citizens are administrative entry restrictions imposed on citizens of Indonesia by the authorities of other states.
Visa requirements for Cypriot citizens are administrative entry restrictions by the authorities of other states placed on citizens of Cyprus.
Visitors to Venezuela must obtain a visa from one of the Venezuelan diplomatic missions, unless they come from one of the visa exempt countries.
Visitors are required to hold proof of sufficient funds to cover their stay and documents required for their next destination.
Visitors not holding return / onward tickets could be refused entry. Naturalized Venezuelan citizens, must hold in addition to their passport and National Identity Card, the original of the official decree of their naturalization issued by the Venezuelan government.
All visitors must hold a passport valid for 6 months.
Visitors to Ukraine must obtain a visa from one of the Ukrainian diplomatic missions unless they are citizens of one of the visa-exempt countries.
The visa policy of the Philippines is governed by Commonwealth Act No. 613, also known as the Philippine Immigration Act, and by subsequent legislation amending it.
Visitors to India must obtain a visa unless they come from one of the visa-exempt countries. Nationals of certain countries may obtain a visa on arrival or an e-Visa online, while others must obtain a visa from an Indian diplomatic mission.
Most visitors to Iran must obtain an electronic visa (e-Visa) prior to their arrival in Iran, unless they are a citizen of one of the visa-exempt countries or countries that are ineligible for an e-Visa, in which case they must obtain a visa in advance from one of the Iranian diplomatic missions around the world.
Visa requirements for Slovenian citizens are administrative entry restrictions imposed on citizens of Slovenia by the authorities of other states. As of July 2024, Slovenian citizens had visa-free or visa on arrival access to 184 countries and territories, ranking the Slovenian passport 10th overall in terms of travel freedom, according to the Henley Passport Index.
Papua New Guinea Visitors must obtain a visa on arrival or e-Visa to enter the country. Visitors can also apply for a visa from the PNG diplomatic missions. All visitors must have a passport valid for 6 months.
Visitors to East Timor must obtain a visa, unless they come from one of the visa exempt countries.
Visa requirements for Andorra citizens are administrative entry restrictions by the authorities of other states placed on citizens of Andorra. As of 11 January 2024, Andorran citizens had visa-free or visa on arrival access to 172 countries and territories, ranking the Andorran passport 19th in terms of travel freedom according to the Henley Passport Index.
The British Overseas Territories maintain their own entry requirements different from the visa policy of the United Kingdom. As a general rule, British citizens do not have automatic right of abode in these territories.
An electronic visa (E-Visa) and an electronic travel authorization are digital travel permits commonly required in conjunction with a valid passport for entry into specific jurisdictions. These electronic travel documents have gained prominence in the modern era of digital connectivity and streamlined travel processes.
North Koreaportal 
