Merila se razvijejo po zelo obširnem posvetovanju med vsemi zainteresiranimi stranmi, vključno z javnimi oblastmi, predstavniki potrošniških in okoljevarstvenih nevladnih organizacij, industrijo, malimi in srednje velikimi podjetji (MSP), distributerji in drugimi.
The criteria are developed following very extensive consultation between all interested parties, including public authorities, representatives of consumer and environmental non-governmental organisations (NGOs), industry, small and medium-sized enterprises (SMEs), distributors and others.