Nations have agreed to refine the Washington Principles on returning Nazi-looted art, clarifying ambiguities and disputes. The new agreement, "Best Practices for the Washington Principles on Nazi-Confiscated Art," aims to promote just and fair solutions for restitution claims. It addresses issues like the well-being of current art holders and sales under duress during the Holocaust era. The guidelines also emphasize the responsibility of governments to create independent expert bodies to adjudicate art and cultural property cases. While progress has been made in implementing the principles, there is still significant work to be done to secure justice for Holocaust victims and their heirs.