The Tobago House of Assembly (THA) is a unicameral autonomous legislative body responsible for the island of Tobago within the twin-island nation of Trinidad and Tobago. The THA was established in 1980 to rectify some of the disparities in the relationship between the two islands, though a prior body using the same name existed from 1768–1874. In addition to the normal local government functions the THA handles many of the responsibilities of the central government, but has limited ability to collect taxes and impose local law or zoning regulations. The THA consists of: one Presiding Officer, twelve elected assemblymen, and four appointed councillors. Three of the councillors are appointed on the advice on the Chief Secretary and one on the advice of the Minority Leader. The Chief Secretary is the leader of the majority party in the assembly.
The first THA elections were held on November 24, 1980. The Democratic Action Congress led by A.N.R. Robinson won eight seats and the People's National Movement (PNM) won four seats (a reversal of the 1977 County Council elections in which the PNM won seven seats and the DAC 4). The DAC went on to win the 1984 elections by a margin of 11-1 over the PNM. The National Alliance for Reconstruction (into which the DAC merged in 1986) continued to dominate the THA winning the 1988 elections, and the 1992 elections by an 11-1 margin over the PNM. It won the 1996 elections by a margin of 10-2, with the PNM and an independent candidate winning one seat each.