It does exist a convention on a regional level, the European Convention on the Recognition of the Legal Personality of International Non-Governmental Organizations within the European Council, an international treaty that sets the legal basis for the existence and work of NGOs in Europe. (globaleducationmagazine.com)
Janet stayed on for a few days after Lester returned home, meeting with environmental NGOs in Beijing and giving a presentation on Plan B 4.0 at Beijing Normal University. (earthpolicy.org)
CCS is supported by environmental NGOs such as Norway's Zero Emissions Resource Organization (ZERO). (treehugger.com)