<P> Each baby born in the England and Wales is issued a National Health Service number, taking the form NNN - NNN - NNNN, for example 122 - 762 - 9257 (the last number being a check digit). They were formerly of the style "LLLNNL NNN", for example KWB91M 342, which continued patterns used in World War II identity cards . However, due to the decentralized nature of local NHS organizations issuing the numbers, some patients have been allocated several numbers, the ratio is more often more (one person: many numbers) than (one person: one number). The National Programme for Information Technology (NPfIT) has also shown that one person can have many numbers, although measures are being undertaken to fix duplicates in the data . </P> <P> Babies born in Scotland are issued a CHI (Community Health Index) number, taking the form DDMMYY - NNNN, with the DDMMYY representing their date of birth and a four digit unique number thereafter (e.g. someone born on 1 January 2010, would have the number 010110 - NNNN, with the four digit number allocated upon entering newborn details on to the local health board's patient administration system). The second last N is even for females and odd for males . </P> <P> In Australia, the Tax File Number (TFN) is issued by the Australian Taxation Office (ATO) to individuals and businesses to track them for income tax purposes . Similar to the Social Security Number (SSN) in the US, each individual's TFN is unique, and does not change throughout their lifetime . However, unlike its U.S. counterpart, Australian law specifically prohibits the use of the TFN as a national identification number, and restricts the use of the TFN to tracking individuals for filing income taxes, superannuation contributions and receiving state welfare benefits . </P> <P> In New Zealand, an Inland Revenue Department (IRD) number is issued by the IRD to every taxpayer (a natural or juristic person), and is needed with dealings with the IRD . It must be given to any employer or bank responsible for charging withholding tax, and to apply for or use a student loan . Driver's licences carry a unique number, often recorded when providing them as identification . </P>

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