OBS_VALUE: <ul><li><a href=https://sso.agc.gov.sg/Act/PSA1999 target=_blank>Postal Services Act(Postal Services Act (Ch. 237A)(Original Enactment: Act 42 of 1999)Revised Edition 2000 (30th December 2000). Last amended on 14 May 2021. )</a></li><li><a href=https://sso.agc.gov.sg/SL/PSA1999-S231-2008 target=_blank>Postal Services Regulations 2008(No. S 231Postal Services Act(Chapter 237a)Postal Services Regulations 2008)</a></li></ul>