This Directive shall apply to electronic invoices issued as a result of the performance of contracts to which Directive 2009/81/EC, Directive 2014/23/EU, Directive 2014/24/EU or Directive 2014/25/EU applies.
This Directive shall not apply to electronic invoices issued as a result of the performance of contracts falling within the scope of Directive 2009/81/EC, where the procurement and performance of the contract are declared to be secret or must be accompanied by special security measures in accordance with the laws, regulations or administrative provisions in force in a Member State, and provided that the Member State has determined that the essential interests concerned cannot be guaranteed by less intrusive measures.