OBS_VALUE: <ul><li><a href=https://sso.agc.gov.sg/Act/BCA1989 target=_blank>Building Control Act(Building Control Act(Chapter 29)(Original Enactment: Act 9 of 1989)Revised Edition 1999(30th December 1999). Issued on 1st May 1989. Last amended on 01 March 2021. Article 50. )</a></li><li><a href=https://www.enterprisesg.gov.sg/quality-standards/standards/for-companies/standards-and-technical-references target=_blank>Standards and Technical References, Entreprise Singapore website</a></li></ul>