word | | Legal system |
| accepted | Tanzania | based on English common law; judicial review of legislative acts limited to matters of interpretation; has not accepted compulsory ICJ jurisdiction |
| accepted | Thailand | based on civil law system with influences of common law; has not accepted compulsory ICJ jurisdiction |
| accepted | Timor-Leste | ... law remains in place but is to be replaced by civil and penal codes based on Portuguese law; these have passed but have not been promulgated; has not accepted compulsory ICJ jurisdiction |
| accepted | Tonga | based on English common law; has not accepted compulsory ICJ jurisdiction |
| accepted | Trinidad and Tobago | based on English common law; judicial review of legislative acts in the Supreme Court; has not accepted compulsory ICJ jurisdiction |
| accepted | Tunisia | based on French civil law system and Islamic law; some judicial review of legislative acts in the Supreme Court in joint session; has not accepted compulsory ICJ jurisdiction |
| accepted | Turkey | ... continental legal systems; note - member of the European Court of Human Rights (ECHR), although Turkey claims limited derogations on the ratified European Convention on Human Rights; has not accepted compulsory ICJ jurisdiction |
| accepted | Turkmenistan | based on civil law system and Islamic law; has not accepted compulsory ICJ jurisdiction |
| accepted | Ukraine | based on civil law system; judicial review of legislative acts; has not accepted compulsory ICJ jurisdiction |
| accepted | United Arab Emirates | based on a dual system of Sharia and civil courts; has not accepted compulsory ICJ jurisdiction |
| accepted | United States | ... system, of which all but one (Louisiana, which is still influenced by the Napoleonic Code) is based on English common law; judicial review of legislative acts; has not accepted compulsory ICJ jurisdiction |
| accepted | Uzbekistan | based on civil law system; has not accepted compulsory ICJ jurisdiction |