Cooperation is one of the three main pillars of SEIS and contributes to the successful achievement of the project’s objectives. It is established by the sequence of the several actions, as outlined in the project’s terms of reference.   One of the first steps, after the  official nomination of National Focal Points from the Ministry of Environment and National Statistical Office, is the political commitment expressed through signature of Letters of Intent between the governments of the six Eastern Partnership countries and the EEA. On the 12th of December 2017, the Letter of Intent for the project was signed by the EEA and Azerbaijan.