Article 18: Duration - Commission Implementing Decision (EU) 2017/499 of 17 March 2017 on setting up the e-Science and Technology European Infrastructure for Biodiversity and Ecosystem Research — European Research Infrastructure Consortium (LifeWatch ERIC) (notified under document C(2017) 1648) (Only the Dutch, French, Greek, Italian, Portuguese, Romanian Slovenian and Spanish texts are authentic) (Text with EEA relevance)