Optional
Optional
Glossary for passenger
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Transportation
Definition of optional
The status of a data element, marked O, which may be omitted if not required by the carrier or by Governmental regulations. Omission of this element is independent of all other elements and does not have any effect on other elements.
Source: http://www.iata.org/whatwedo/passenger/Documents/passenger-glossary-of-terms.xls
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Definition of optional
Glossary for passenger
Definition and meaning of optional
Meaning of optional
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