Permanent Observer of the Holy See to UNEP and UN-HABITAT

The Permanent Observer of the Holy See to UNEP and UN-HABITAT is an ecclesiastical office of the Catholic Church, which, as a diplomatic post of the Holy See, represents the interests of the Holy See to the United Nations Environment Programme and the United Nations Human Settlements Programme. Its offices are in Nairobi, Kenya, and the position has, since its creation in 1977, been held by the Apostolic Nuncio to Kenya. 
List of permanent observers.
The first Permanent Observer has been Nuncio to Kenya for several months when he was given his assignment as permanent observer. The next two were given both positions simultaneously. The fourth, van Megen, was appointed nuncio to Kenya on 16 February 2019, then nuncio to South Sudan on 19 March, and then Permanent Observer to the UN agencies in Nairobi on 25 May.