Article 13
The relief referred to in Article 12 may be granted only to persons:
(a)
whose normal place of residence has been outside the customs territory of the Community for a continuous period of at least 12 months. However, derogations from this rule may be granted provided that the intention of the person concerned was clearly to reside outside the customs territory of the Community for a continuous period of at least 12 months;
(b)
who produce evidence of their marriage.