Issuing authority for driver’s license. For state or province refer to official postal
codes for that country; for country refer to ISO 3166 for codes. The ISO 3166 table
has three separate forms of the country code: HL7 specifies that the 3-character (alphabetic)
form be used for the country code. User-defined Table 0333 - Driver’s license issuing
authority is used as the HL7 identifier for the user-defined table of values for this
component.