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 25 August 1972. Last amended on 21 April 2023.)</a></li><li><a href=https://www.mom.gov.sg/passes-and-permits/s-pass/key-facts target=_blank>Ministry of Manpower (MOM), S Pass</a></li></ul>