• Operation Code for NII – 4th version - March 2022

• Operation Code for NII - 3rd version - July 2020

• Operation Code for NII - 2nd version - April 2018

• Electrical System Operation Code for Non-Interconnected Islands (NII Code) (GG B' 304/11.02.2014 - RΑΕ 39/28.01.2014)