Malta:
based on English common law and Roman civil law; accepts
compulsory ICJ jurisdiction, with reservations

Man, Isle of:
English common law and Manx statute

Marshall Islands:
based on adapted Trust Territory laws, acts of the
legislature, municipal, common, and customary laws

Martinique:
French legal system

Mauritania:
a combination of Shari'a (Islamic law) and French civil
law

Mauritius:
based on French civil law system with elements of English
common law in certain areas

Mayotte:
French law

Mexico:
mixture of US constitutional theory and civil law system;
judicial review of legislative acts; accepts compulsory ICJ
jurisdiction, with reservations

Micronesia, Federated States of: based on adapted Trust Territory laws, acts of the legislature, municipal, common, and customary laws

Midway Islands:
the laws of the US, where applicable, apply