NGA Chart 82095: Ysabel Channel NHS - Main Chart Series These codes are published by

These codes are published by the International Maritime Organization (IMO) as an ongoing effort to reinforce maritime safety procedures and communications to the international maritime community

A4 Sub-surface loading systems

Four rectangular ensignia called trigrams border the symbol

The course content is carefully structured to enhance both knowledge and skills

This logbook complies with revised MARPOL 73/78

NGA Chart 82095: Ysabel Channel NHS - Main Chart Series These codes are published byThe 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