ICLEI has a special consultative status at the Economical and Social Council (ECOSOC) since 2002.
Through its role as Organizing Partner (OP) of Local Authorities Major Group (LAMG), ICLEI has actively contributed in global efforts on sustainable development, since the adoption of Agenda 21 in 1992.
ICLEI closely monitors and engages as appropriate in the outcomes of the Rio+20 process in 2012, by building upon the momentum created at the Rio+20 Global Town Hall.
ICLEI signed Memorandum of Understandings with a number of UN Bodies, including UNEP, UNHabitat, UN ISDR that enable partnerships and participation of ICLEI delegation at respective Governing Council meetings and other technical sessions at various levels.
ICLEI is the longlasting member of the UNEP Major Groups Facilitating Committee since 2000.
ICLEI is the only local government network that is accredited as observer at the three Rio Conventions, namely UN Framework Convention on Climate Change (UNFCCC), UN Convention on Biodiversity (CBD) and UN Convention on Desertification (UNCCD). ICLEI actively participates in the negotiation and implementation of issues under these Conventions.
At the UNFCCC level, ICLEI acts as the focal point of local governments and municipal authorities constituency (LGMA).
At the CBD level, ICLEI is a leading partner of the Global Partnership on Local and Subnational Action for Biodiversity, and signed an MoU with the CBD Secretariat.