OBS_VALUE: <ul><li><a href=https://sso.agc.gov.sg/SL/IA1959-RG1? target=_blank>Immigration Regulations(Immigration Act(Chapter 133, Section 55(1)) Immigration Regulations Rg 1 G.N. No. S 252/1972. Revised Edition 2009 (1st June 2009). Issued On 25th August 1972.Last amended on 11 October 2019. Regulation 3B(1c), 12. )</a></li><li><a href=https://www.moh.gov.sg/news-highlights/details/additional-border-control-measures-to-reduce-further-importation-of-covid-19-cases target=_blank>Ministry of Health(ADDITIONAL BORDER CONTROL MEASURES TO REDUCE FURTHER IMPORTATION OF COVID-19 CASES, 22 March 2020)</a></li><li><a href=https://www.caas.gov.sg/who-we-are/newsroom/Detail/singapore-reaches-agreement-with-india-to-resume-scheduled-commercial-passenger-flights-between-two-countries target=_blank>Civil Aviation Authority of Singapore (CAAS)(Singapore Reaches Agreement with India to Resume Scheduled Commercial Passenger Flights between Two Countries)</a></li></ul>