Difficulties in working together, however, caused Jamaica to withdraw in 1961, and when Trinidad and Tobago followed, the federation collapsed. Trinidad and Tobago obtained full independence and joined the Commonwealth in 1962. Trinidad and Tobago's economy depends to a large degree on petroleum production for income. Summer weight clothing is worn year round. Wash fruits and vegetables carefully and do not drink water from an unknown source.
Tap water is potable, however.
Telephone, telefax, and cable service are reliable, of high quality and readily available. Trinidad and Tobago is on Atlantic standard time and therefore 1 hour ahead of Washington from October to April and on the same time as Washington from April to October. Trinidad's Piarco International Airport is served by several airlines, including three US carriers. Air and coastal steamer connections to Tobago are available form Trinidad. Taxis and rental cars are available on both islands.