Login and registration are managed by "EU login", the European Commission's user authentication service. Click the login link below or at the top of the page, which will take you to "EU login". If you are already registered, just log in, otherwise you can register straight away.
Registering with "EU login" also enables you to automatically log in to a number of European Commission websites, including the e-Justice Portal. You can access them by logging in once with a single "EU login"user login name and password.