The German Federal Environment Agency (UBA) has posted an English translation of a 2012 document entitled Concept for a European Register of Products Containing Nanomaterials. The document states that, due to the particular uncertainties concerning evaluation of the possible risks of nanomaterials for human health and the environment, UBA supports the establishment of a European register of products containing nanomaterials as a precautionary measure. The objective of the product register would be to provide an overview of products containing nanomaterials that have applications in the consumer area and in an open environment. According to UBA, this would enable public authorities to set priorities in enforcement and monitoring, to estimate exposure for humans and the environment, and, in the case of adverse effects, to ensure traceability. For actors in the supply chain, a product register would create transparency. UBA states that the establishment of the product register should take place at the European Union (EU) level and be managed centrally. UBA acknowledges that a national product register would overlap with EU legislation and obligations and regulations in individual EU Member States, which would mean increased costs for authorities and stakeholders subject to notification. Substances and mixtures (manufactured or imported) that comprise or contain nanomaterials would be subject to notification, as well as articles that intentionally or unintentionally release nanomaterials.