Circular Letter MSC/Circ.1179 DEFICIENCIES IN HYDROGRAPHIC SURVEYING AND NAUTICAL CHARTING WORLDWIDE AND THEIR IMPACT ON SAFETY OF NAVIGATION AND PROTECTION OF THE MARINE ENVIRONMENT
Annex. NOTE FROM THE IHO TO ALL COASTAL STATES. THE STATUS OF HYDROGRAPHIC SURVEYING AND NAUTICAL CHARTING WORLDWIDE AND ITS IMPACT ON THE SAFETY OF NAVIGATION.
A. Responsibilities of Coastal States
B. Status of hydrographic surveying and nautical charting world-wide
C. Action Required