NGA Nautical Chart 104: Lisboa to Freetown Pilotage Charts he has kept abreast of

he has kept abreast of developments in pilot ladder construction and has been an active participant for many years with the International Maritime Pilots' Association

it is a vital tool for maritime safety and operational excellence

British Admiralty Nautical Chart 1489: New Providence Island is a standard nautical chart

Istanbul Bogazi Güneyi (Southern Bosporus) is a standard nautical chart

and intermediate surveys

NGA Nautical Chart 104: Lisboa to Freetown Pilotage Charts he has kept abreast ofThe chart you are viewing is a NGA standard nautical chart. The National Geospatial Intelligence Agency (NGA) has partnered with OceanGrafix to provide commercial and recreational mariners with a good source of nautical chart coverage for international waters. These charts are "printed on demand" but do not contain the latest notice to mariner (NTM) corrections. It is the mariner's responsibility that the necessary chart corrections be applied to