The European Chemicals Agency (ECHA) has launched a call for tenders to perform a study “Assessment of the potential impact of graphene, graphene oxide and other 2D materials on health, and the environment” as part of the European Union (EU) Observatory for Nanomaterials (EUON). According to the description, the goal of the study is to conduct a systematic literature review of the health and environmental effects of graphene, graphene oxide, and other two-dimensional (2D) materials, based on existing public information. The objective of the requested services is to collect information from existing public sources, including journal publications and EU-funded research projects. The study should also assess what general conclusions can be made regarding the potential health and environmental properties of 2D materials. Finally, the review should examine to what extent existing approaches to health and environmental testing of chemicals are applicable to graphene, graphene oxide, and other 2D materials, and what challenges and pitfalls exist surrounding the testing of these materials. The deadline for expressing interest is August 13, 2021.