Where the periods referred to in paragraphs 3 and 4 are weeks, Member States may provide that the amount of import or export duty in respect of which payment has been deferred is to be paid on the Friday of the fourth week following the week in question at the latest.
I gcás inar seachtainí iad na tréimhsí dá dtagraítear i mír 3 agus i mír 4, féadfaidh na Ballstáit a fhoráil go mbeidh méid na dleachta ar allmhairí nó ar onnmhairí ar cuireadh siar an íocaíocht ina leith le híoc ar an Aoine den cheathrú seachtain i ndiaidh na seachtaine atá i gceist ar a dhéanaí.