word | | Legal system |
| accepted | Mozambique | based on Portuguese civil law system and customary law; has not accepted compulsory ICJ jurisdiction |
| accepted | Namibia | based on Roman-Dutch law and 1990 constitution; has not accepted compulsory ICJ jurisdiction |
| accepted | Nepal | based on Hindu legal concepts and English common law; has not accepted compulsory ICJ jurisdiction |
| accepted | Niger | based on French civil law system and customary law; has not accepted compulsory ICJ jurisdiction |
| accepted | Oman | based on English common law and Islamic law; ultimate appeal to the monarch; has not accepted compulsory ICJ jurisdiction |
| accepted | Palau | based on Trust Territory laws, acts of the legislature, municipal, common, and customary laws; has not accepted compulsory ICJ jurisdiction |
| accepted | Papua New Guinea | based on English common law; has not accepted compulsory ICJ jurisdiction |
| accepted | Qatar | ... Islamic and civil law codes; discretionary system of law controlled by the amir, although civil codes are being implemented; Islamic law dominates family and personal matters; has not accepted compulsory ICJ jurisdiction |
| accepted | Romania | based on civil law system; has not accepted compulsory ICJ jurisdiction |
| accepted | Russia | based on civil law system; judicial review of legislative acts; has not accepted compulsory ICJ jurisdiction |
| accepted | Rwanda | based on German and Belgian civil law systems and customary law; judicial review of legislative acts in the Supreme Court; has not accepted compulsory ICJ jurisdiction |
| accepted | Saint Kitts and Nevis | based on English common law; has not accepted compulsory ICJ jurisdiction |
| accepted | Saint Lucia | based on English common law; has not accepted compulsory ICJ jurisdiction |
| accepted | Saint Vincent and the Grenadines | based on English common law; has not accepted compulsory ICJ jurisdiction |