Registration: Companies must register substances with the European Chemicals Agency (ECHA) by submitting a dossier containing information on chemical properties, uses, and risk management measures. Evaluation: ECHA and member states evaluate the submitted information to ensure compliance and determine if additional data is needed. Authorisation: Substances of very high concern (SVHCs) require authorisation for specific uses, ensuring they are controlled and progressively replaced with safer alternatives. Restriction: REACH can impose restrictions on the manufacture, sale, or use of certain substances to protect health and the environment.