Main Functions of Visas

A visa is a measure taken by a sovereign state to preserve its sovereignty, pride, security and rights. Visas are an important way for a sovereign country to manage entry and exit from its borders. Citizens of a country who wish to travel to other countries are required to obtain a visa.

Sample Visa

If a citizen of a country wishes to travel, live, trade, study, etc. to another country, he or she must have an efficient passport or travel document, and another criterion is that he or she must obtain a visa for the country to which he or she is going. Usually, the visa issued by a country to a foreigner is based on the criteria of equal and reciprocal treatment of the foreign country's nationals, and the same benefits and convenience are given to the nationals of both countries to travel with each other. However, there visa extension hong kong are visa-free countries such as 18 visa-free countries with Chinese passports, 130 visa-free countries with U.S. passports, etc.

For foreigners, different entry visas are generally issued according to the applicant's status and purpose of entry, such as tourist, family visit, immigration, study, work, etc., and limit the length of stay after entry. Depending on the type of visa, the documents required are different. Generally, for short term stay, there are fewer restrictions and the waiting time is shorter. For long term residence, there are more restrictions and a longer waiting time. A country is not obligated to grant unconditional entry to a foreigner (except by treaty), nor does a foreigner limit a government's authority to grant him or her entry. A sovereign state will always have conditional restrictions on the entry of foreigners. With the development of international trade and international relations links and the boom in tourism, visa requirements for many countries tend to be simplified. There are also agreements between countries to waive visas for each other or to simplify visa procedures.

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