Article 1 of the French Customs Code
1. The customs territory comprises the territories and territorial waters of mainland France, Corsica, the French coastal islands, Guadeloupe, French Guiana, Martinique, Réunion, Mayotte and Saint-Martin. 2. Free zones, exempt from all or part of the customs regime, may be set up in the aforementioned territories. 3. Foreign territories or parts of foreign territories may be included in the customs territory.