AUTEURS
Lieke van 't Veer https://www.linkedin.com/in/liekevantveer/ 
Esmee van Vliet https://www.linkedin.com/in/esmee-van-vliet-5bb4b510a/
Nick Heineman https://www.linkedin.com/in/nick-heineman/
Sara Jalal https://www.linkedin.com/in/sarajalal/

EXECUTIVE  SUMMARY
In today’s era of interconnectivity, globalization and a sharing economy, science is increasingly participatory and voluntary, a trend known as Citizen Science (CS), that nonprofit organizations should make use of for their own benefit and that of society. Three purposes of CS have been identified: data collection, education and policy making. These three purposes can be enforced by three models of cooperation, namely the contributory model, in which volunteers only contribute to data collection, the collaborative model in which volunteers also engage in data analysis and interpretation, and the co-created model in which volunteers are involved in every stage of the research process. The implementation of such projects for nonprofits holds great potential. However, given the lack of clarity surrounding the implementation and execution of CS within the field of nonprofits, many organizations do not consider engaging in CS. In order to tackle this, a thorough analysis of issues is conducted to determine potential risks for NPOs engaging in CS projects. Following, policy recommendations to avoid and suppress these potential issues are provided. The policies have been clearly outlined according to potential purposes of citizen science and different types of projects that NPOs may want to use to employ citizen science. These recommendations hope to enhance public understanding and engagement in CS, ease processes of such projects and stimulate interdisciplinary relationships between society, the organization, and academics.