Territorial Waters (Amendment) Decree 1998. Country/Territory Nigeria Document type Legislation Date 1998 Source FAO, FAOLEX Subject Sea Keyword Maritime zone Territorial sea Sovereignty Geographical area Africa, Western Africa Abstract The Territorial Waters (Amendment) Decree of 1970 extended the limits of the Territorial Waters of Nigeria from 12 nautical miles to 30 nautical miles. This Decree changes the definition of territorial waters by replacng the words "thirty nautical miles" with the words "twelve nautical miles". (3 sections) Full text English References - Legislation Amends Territorial Waters Act. Legislation | Nigeria | 1967 (2013) Keyword: Maritime zone, Territorial sea, Enforcement/compliance, Legal proceedings/administrative proceedings, Sovereignty Source: FAO, FAOLEX