(6)The technical screening criteria for determining whether an economic activity contributes substantially to climate change mitigation or climate change adaptation laid down in Article 9 of Regulation (EU) 2020/852 and does no significant harm to any of the other environmental objectives should, where relevant, build on existing Union law, best practices, standards and methodologies, and well-established standards, practices and methodologies developed by internationally reputed public entities. Where those standards, practices and methodologies are not available for a specific policy area, the technical screening criteria should build on well-established standards developed by internationally reputed private bodies.