Preferential tariff treatment under GSP clarified; authorised agencies for Certificates of Origin and procedural amendments specified. Paragraph 4.25 is amended to describe the GSP as unilateral preferential tariff schemes and to note India's participation in GSTP, BA and SAPTA subject to rules of origin. The amendment designates authorised agencies to issue Certificates of Origin, names the Export Inspection Council as sole issuer under GSTP and sole printer of blank certificates, permits authorised agencies to charge approved fees, adds Appendix-51 listing agencies authorised to issue GSP Certificates of Origin, redefines Appendix-51B to cover only non-preferential Certificates of Origin, and includes administrative amendments to Appendices 42, 32B and related corrigenda on NFEP for the STP scheme.