Diplomatic service tax exemption: personal services for diplomats and family exempt when certified and documented under procedures. All taxable services for personal use of diplomatic agents or career consular officers and their family members are exempt from service tax when the Protocol Division issues a reciprocity-based certificate and an identification card with a unique number; the head of mission furnishes an authenticated certificate and a numbered undertaking referencing that unique number; accounts of undertakings, invoice annotations, and retention of identification, certificate and invoice copies by the service provider are required; withdrawal of certificate or identification card terminates the exemption.