The criteria in TCO Certified are developed by TCO Development in a structured process based on scientific evidence and stakeholder dialog.
The development process includes input from experts, researchers, industry representatives, and other stakeholders to ensure that the criteria are relevant, effective, and practical to implement. To stay ahead of legislation and adapt to technical developments, a new set of criteria is developed every three years. When relevant, the criteria are aligned with international standards and frameworks such as ILO core conventions and the United Nations Convention on the Rights of the Child.