Visa policy of Singapore
Visitors to Singapore can either enter the country without a visa or in some cases they must first obtain a visa. Citizens of almost 80% of the world countries may travel to Singapore for a period ranging from 30 days to 90 days. Only 38 countries require visa for Singapore. They are categorized into countries eligible to apply for an electronic visa and countries whose citizens need a full visa from a Singaporean embassy or consulate.
- hold a passport or travel document valid for 6 months at the time of departure,
- hold an onward or return ticket,
- have sufficient funds to stay in Singapore.
- Entry facilities to the next destination
- Visa for entry into Singapore (if applicable)
- convince an immigration officer that they have ties (job, home, financial assets or family) that will take them back to their home country
Visa policy map
Citizens of all countries not included in Assessment Level I and Assessment Level II lists are allowed a maximum stay of 30 days without a visa in Singapore, except the holders of the following passports who are allowed to stay for 90 days:
Singapore groups visa requiring nationals into two groups — Assessment Level I and Assessment Level II countries.
Assessment Level I Countries
Citizens of the following countries may obtain a visa online or at the nearest Singaporean High Commission, Embassy or Consulate. Visa requirement does not apply to holders of diplomatic or official/service passports of these countries.
- Holders of Hong Kong Document of Identity for Visa Purposes
- Holders of Macao Special Administrative Region Travel Permit
Assessment Level II Countries
Citizens of the following countries and territories must obtain a visa in advance at the nearest Singaporean Diplomatic Mission. 
Visa requirement does not apply to holders of diplomatic or official/service passports of Bangladesh, Jordan, Tunisia and of diplomatic passports of Saudi Arabia.
Transit without a visa
Nationals of Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine and Uzbekistan may use a Visa Free Transit Facility which allows them to visit Singapore for 96 hours. 
Mandatory yellow fever vaccination
Nationals of the following countries or nationals arriving from the following countries require an International Certificate of Vaccination in order to enter Singapore. The vaccination for yellow fever is considered valid 10 days after vaccination. The certificate is for a period of 10 years. Failure to fulfill this requirement could result in refusal of entry into Singapore.
Most visitors arriving to Singapore on short term basis were from the following countries of nationality:
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- "Visa Information - Singapore". ICA. Retrieved 17 December 2013.
- For Foreigners Visiting Singapore
- Except for holders of passports endorsed for public affairs.
- "Tourism Statistics Publications" (PDF). Singapore Tourism Board. Retrieved January 4, 2016.
- Excludes Malaysian citizens arriving by land.
- Immigration & Checkpoints Authority Countries Requiring Visa
- Ministry of Foreign Affairs of Singapore List of Singapore Embassies
- Immigration & Checkpoints Authority List of Trusted Partners Overseas