IFSS systems are in operation across various checkpoints, including Woodlands Checkpoint and Tuas Checkpoint. 28 April – PPWC's closure is extended until 5 May after the extension of Home Quarantine Orders for tenants and workers there. 29 April – Temperature checks are introduced for all passengers arriving and departing Singapore by sea from 7pm. Tighter screening procedures are also introduced for all cargo and passenger vessels to contain SARS. 11 May – Nurse Hamidah Ismail dies on Mother's Day. 18 May – Last SARS patient detected. 21 May – The SARS Channel is launched in partnership with MediaCorp, SPH MediaWorks and StarHub. The channel shows SARS-related programming, as well as news and infomercials on SARS, broadcasting until 9 July, after all countries are taken off the SARS list. 30 May – Singapore is officially declared SARS-free by the World Health Organization, taking effect the following day. 16 July – SARS is eradicated from Singapore. By the time the outbreak ended, a total of 238 people are infected with 33 dead. 1 March – Online identification-based service, SingPass is launched. 20 March – The Airport Logistics Park is officially opened. 21 March – Compressed natural gas (CNG) taxis are launched to encourage vehicles to run on cleaner fuels. 24 March – Downer EDI Group (an Australian firm) announced the acquisition of CPG Corporation from Temasek Holdings, which is completed on 1 April. 29 March – ComfortDelGro Corporation is formed from the merger of land transport companies Comfort Group and DelGro Corporation, first announced on 21 November 2002. Since then, ComfortDelGro Corporation has become a multinational transport operator. 31 March – Daimaru shuts its last stores in Singapore. April 1 April – The Immigration and Checkpoints Authority is formed to tackle new security threats, leading to the formation of Singapore Customs. As a result, the Registry of Societies and Registry of Political Donations will transfer to the Ministry of Home Affairs and Elections Department respectively. Meidi-Ya opens in Liang Court, taking over what used to be a Daimaru store. 28 April – The last traces of the Overseas Union Bank (OUB) name will disappear by end-2003 as it merged into United Overseas Bank (UOB). May 6 May – Singapore and United States sign the United States-Singapore Free Trade Agreement (USS-FTA). 26 May – The Action Community for Entrepreneurship (ACE) is launched to help businesses thrive. June 9 June – The Declaration of