word | | Legal system |
| compulsory | Bosnia and Herzegovina | based on civil law system; has not accepted compulsory ICJ jurisdiction |
| compulsory | Botswana | based on Roman-Dutch law and local customary law; judicial review limited to matters of interpretation; accepts compulsory ICJ jurisdiction with reservations |
| compulsory | Brazil | based on Roman codes; has not accepted compulsory ICJ jurisdiction |
| compulsory | Brunei | based on English common law; for Muslims, Islamic Sharia law supersedes civil law in a number of areas; has not accepted compulsory ICJ jurisdiction |
| compulsory | Bulgaria | civil and criminal law based on Roman law; accepts compulsory ICJ jurisdiction with reservations |
| compulsory | Burkina Faso | based on French civil law system and customary law; has not accepted compulsory ICJ jurisdiction |
| compulsory | Burma | based on English common law; has not accepted compulsory ICJ jurisdiction |
| compulsory | Burundi | based on German and Belgian civil codes and customary law; has not accepted compulsory ICJ jurisdiction |
| compulsory | Cambodia | ... Cambodia (UNTAC) period, royal decrees, and acts of the legislature, with influences of customary law and remnants of communist legal theory; increasing influence of common law; accepts compulsory ICJ jurisdiction with reservations |
| compulsory | Cameroon | based on French civil law system, with common law influence; accepts compulsory ICJ jurisdiction |
| compulsory | Canada | based on English common law, except in Quebec, where civil law system based on French law prevails; accepts compulsory ICJ jurisdiction with reservations |
| compulsory | Cape Verde | based on the legal system of Portugal; has not accepted compulsory ICJ jurisdiction |
| compulsory | Central African Republic | based on French law; has not accepted compulsory ICJ jurisdiction |