Chart update service in use
In the Finnish Transport Agency's publication Notices to Mariners you will find all corrections to the 2009 editions of the charts concerned.
The service is mainly intended for seafarers but can also be used by boaters and yachters.
The number of charts covered by the service will increase as new chart editions are published.
http://portal.liikennevirasto.fi/sivu/www/f/liikenneverkko/merikartat/
Merikarttojen_paivityspalvelu/Merikarttojen_paivityspalvelu