NOTE: THE ELECTRONIC CHART IS AN AID TO NAVIGATIONDESIGNED TO FACILITATE THE USE OF AUTHORIZED GOVERNMENT CHARTS, NOT TO REPLACE THEM. ONLY OFFICIAL GOVERNMENT CHARTS AND NOTICES TO MARINERS CONTAIN ALL INFORMATION NEEDED FOR THE SAFETY OF NAVIGATION AND, AS ALWAYS, THE CAPTAIN IS RESPONSIBLE FOR THEIR PROPER USE. The use of the GEONAV implies knowledge and accep-tance of this warning by the user. READ THIS WARNING BEFORE USING THE GEONAVWARNING The technical characteristics and functions described in this manual aresubject to change as a result of improvements or changes to the product.