Public procurement of open source software: some lessons learned in the Netherlands The Netherlands was the first EU country to formulate formal policies on the promotion of open standards and open source software within its government in fall 2007. Part of that policy was mandating certain open standards in public procurement and an explicit position regarding a level playing field for open source software in public procurement. In order to facilitate this, a programme group was appointed. One aspect of the programme (called Netherlands open in Connection), which is about to end, is the ongoing monitoring of calls for tenders in order to gauge compliance with this policy. The programme also encompassed informing public bodies about this policy as well as providing advice on matters such as making government-owned software open source, implementation strategies and public procurement.