<P> During Portuguese rule, Macau had no unified identification system, and several departments had the authority to issue identity cards to Macau citizens and residents . Since 1992, the Identification Department (once known as SIM, now called DSI) has become the unitary authority to issue identity cards . It has adopted the above - mentioned numbering policy . </P> <P> Macau's Finance Department has also adopted identification number as a tax reporting number, for tax filing purposes . </P> <P> In Malaysia, a 12 - digit number (format: YYMMDD - SS - ###G, since 1991) known as the National Registration Identification Card Number (NRIC No .) is issued to citizens and permanent residents on a MyKad . Prior to January 1, 2004, a separate social security (SOCSO) number (also the old IC number in format' S #########', S denotes state of birth or country of origin (alphabet or number), #is a 9 - digit serial number) was used for social security - related affairs . </P> <P> The first group of numbers (YYMMDD) are the date of birth . The second group of numbers (SS) represents the place of birth of the holder - the states (01 - 13), the federal territories (14 - 16) or the country of origin (60 - 85). The last group of numbers (###G) is a serial number in an unidentified pattern which is randomly generated . The last digit (G) is an odd number for a male, while an even number is given for a female . </P>

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