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External Data Source

Source

Regular Expression
(^(((GIR)\s{0,1}((0AA))))|(([A-PR-UWYZ][0-9][0-9]?)|([A-PR-UWYZ][A-HK-Y][0-9][0-9]?)|([A-PR-UWYZ][0-9][A-HJKSTUW])|([A-PR-UWYZ][A-HK-Y][0-9][ABEHMNPRVWXY]))\s{0,1}([0-9][ABD-HJLNP-UW-Z]{2})$)