"On March 28, 1978, the Governments of the United States of America and the Republic of Venezuela signed an agreement delimiting a maritime boundary in the east-central Caribbean Sea. Instruments of ratification were exchanged and the treaty entered into force on November 24, 1980. [...] This treaty is the first United States maritime boundary that has entered into force since implementation of the 200-nautical-mile US fishery conservation zone on March 1, 1977."
United States Department of State: http://www.state.gov
Limits in the Seas No.91