Under Article 66 of this Decree-Law, a Registrant making supplies of Goods or Services considered as supplied within any Implementing State must issue specific documentation. Without prejudice to the provisions of Article 65, this document must be provided to the recipient. It is mandated to contain all information typically required on a Tax Invoice, along with any other details specified in the Executive Regulation of the Decree-Law. Critically, the document must not be labelled as a 'Tax Invoice' and is explicitly prohibited from including any amount of Tax charged on the supply.