International Hydrographic Organization (IHO)

note- name changed from International Hydrographic Bureau on 22 September 1970
Established- June 1919; effective - June 1921
Aim- to train hydrographic surveyors and nautical cartographers to achieve standardization in nautical charts and electronic chart displays; to provide advice on nautical cartography and hydrography; to develop the sciences in the field of hydrography and techniques used for descriptive oceanography
Members- (81) Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Brazil, Burma, Cameroon, Canada, Chile, China (including Hong Kong and Macau), Colombia, Democratic Republic of the Congo, Croatia, Cuba, Cyprus, Denmark, Dominican Republic, Ecuador, Egypt, Estonia, Fiji, Finland, France, Germany, Greece, Guatemala, Iceland, India, Indonesia, Iran, Ireland, Italy, Jamaica, Japan, North Korea, South Korea, Kuwait, Latvia, Malaysia, Mauritius, Mexico, Monaco, Morocco, Mozambique, Netherlands, NZ, Nigeria, Norway, Oman, Pakistan, Papua New Guinea, Peru, Philippines, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovenia, South Africa, Spain, Sri Lanka, Suriname, Sweden, Syria, Thailand, Tonga, Trinidad and Tobago, Tunisia, Turkey, Ukraine, UAE, UK, US, Uruguay, Venezuela; note - members approved but waiting for Instrument of Accession: Bulgaria, Mauritania, Montenegro, Sierra Leone