This Supplement is an information document and is intended to outline the requirements and provisions for Emergency Services for IMT-2000 systems. This is a compilation from sources outside the ITU (e. g., administrations, Standards Development Organizations, and the Third Generation Partnership Projects (3GPP and 3GPP2)). The scope includes any relevant discussion concerning the provisioning of Emergency Services specifically addressing the IMT-2000 systems during Harmonization and Convergence periods.