above are based upon the rules which apply in metropolitan France and the Schengen Area (see the section above), important differences exist between the two sets of rules. For example, when crossing the external border of the Schengen Area, only family members of EU/EEA/Swiss citizens who hold a residence card issued under Article 10 of Directive 2004/38/EC and who are accompanying or joining their EU, EEA and Swiss citizen family member exercising the right of freedom of movement are exempt from having their travel documents stamped, whereas in the French overseas departments/collectivities mentioned above, more generous rules apply — when entering/leaving Guadeloupe/Martinique/Saint Pierre and Miquelon, a family member of an EU/EEA/Swiss citizen who holds a residence card issued by an EU/EEA member state or Switzerland under Article 10 of Directive 2004/38/EC is exempt from having his/her travel document stamped regardless of whether he/she is accompanying/joining his/her EU/EEA/Swiss citizen family member; when entering/leaving Saint Barthélemy and Saint Martin, a family member of an EU/EEA/Swiss citizen who holds a residence card issued by an EU/EEA member state or Switzerland is exempt from having his/her travel document stamped regardless of whether he/she is accompanying/joining his/her EU/EEA/Swiss citizen family member and regardless of whether the residence card was issued under Article 10 of Directive 2004/38/EC. Another example relates to third-country nationals who hold a residence permit issued by a Schengen member state — when crossing the external border of the Schengen Area, his/her travel document should not be stamped, but when entering/leaving a French overseas department/collectivity, whilst he/she is not required to hold a visa for a short stay not exceeding 90 days in a 180-day period, his/her travel document will be stamped upon entry and exit. Another exception applies in the case of the French overseas collectivity of Saint Martin—travellers who in principle are subject to the obligation to have their travel documents stamped but who have cleared immigration control in Sint Maarten will not have their passport stamped when they enter/leave the French side of Saint Martin. The design of passport stamps issued in the French overseas departments/collectivities differs from those issued in metropolitan France/the Schengen Area. Previously, entry stamps issued in French overseas departments/collectivities were rectangular, whilst exit stamps were hexagonal. Under the current design, both entry and exit stamps issued in French overseas departments/collectivities are hexagonal and have a similar design to Schengen Area stamps. The top left corner states