For example, Congress can create term limits for active service on the Supreme Court. It works by dividing a justice’s time on the bench between two phases: active service and senior status. To get into the legal nitty gritty, see here: www.brennancenter.org/our-work/res...
brennancenter.org
Supreme Court Term Limits Are Constitutional
This legal analysis of leading proposals for term limits demonstrates that they can be implemented by statute.