What are the conditions for adding a new airport code?  

Some airports have likely-to-be-long-lived WWW pages too,
maintained by the airport agencies themselves.

	Sean. (thinking in particular of

CPH: Copenhagen, Denmark (http://www.cph.dk/)
ARN: Arlanda Airport, Stockholm, Sweden (http://www.lfv.se/resehandboken/arlanda/index_arlanda.htm) 
DUB: Dublin Airport, Ireland (http://www.dublin-airport.com/)

)

P.S.: www.1st-air.com seems to have a pretty good listing
      of airport codes

Hubert Feyrer <hubertf@netbsd.org> writes:

> Modified Files:
> 	src/share/misc: airport
> Log Message:
> add Munich International Airport, Munich, Germany (MUC)