Norway:
mixture of customary law, civil law system, and common law
traditions; Supreme Court renders advisory opinions to legislature
when asked; accepts compulsory ICJ jurisdiction, with reservations

Oman:
based on English common law and Islamic law; ultimate appeal
to the monarch; has not accepted compulsory ICJ jurisdiction

Pakistan:
based on English common law with provisions to accommodate
Pakistan's status as an Islamic state; accepts compulsory ICJ
jurisdiction, with reservations

Palau:
based on Trust Territory laws, acts of the legislature,
municipal, common, and customary laws

Palmyra Atoll:
the laws of the US, where applicable, apply

Panama:
based on civil law system; judicial review of legislative
acts in the Supreme Court of Justice; accepts compulsory ICJ
jurisdiction, with reservations

Papua New Guinea:
based on English common law

Paraguay:
based on Argentine codes, Roman law, and French codes;
judicial review of legislative acts in Supreme Court of Justice

Peru:
based on civil law system; has not accepted compulsory ICJ
jurisdiction

Philippines:
based on Spanish and Anglo-American law; accepts
compulsory ICJ jurisdiction, with reservations