1. The chair or a co-chair of your institution has signing your commitment letter agreeing to share resources with the UNESCO UniTwin CS-DC through your own research and education programme on complex systems and/or sustainable development toward the objective of the CS-DC preamble and the Cooperation Programme with UNESCO.

2. ‘Institutional Member’: if you are High Education and/or Research Institution

3.‘Institutional Associate Member’: if you are part of a High Education and/or Research Institution

4.‘Institutional partner’: you can become an ‘Institutional partner’ if you are:
        a. NGOs working in the field of higher education and research;
b. other academic associations;

1. ‘Individual Associate Member’: You become an ‘Individual Associate Member’ by signing your Individual Membership Form, you agree to share resources with the UNESCO UniTwin CS-DC through your own research and education programme on complex systems and/or sustainable development toward the objective of the CS-DC preamble and the Cooperation Programme with UNESCO.

2. ‘Individual Member’: You become an ‘Individual Member’ if you belong to an Institutional Member or to an Institutional Associate Member or to the CS-DC international e-campus (if you are accepted by a community you are asking for in the Individual Membership Form).

1. Create a group for writing your Challenge and its three sub-challenges.

2. Choose either the main theoretical eDept (your challenge is mainly theoretical) or the main experimental eDept (your challenge is mainly experimental) or the main theoretical eDept & the main experimental eDept.

3. Look in your chosen eDept(s) if there is an eLab whose challenge is more general that your challenge: if there is one (or two) eLab(s), fill the new Community form and attach it to this eLab in the Community form.

4. If there is no eLab for your attachment, please look at the whole set of eTeams of your main eDept(s), please ask the attachment(s) to your chosen eDept(s).