EPCG scheme: zero-duty capital goods imports subject to time-bound export obligation and security, with optional tax exemptions. The EPCG scheme allows zero-duty import of capital goods subject to an export obligation equal to six times the duties/taxes saved, to be fulfilled within a standard six-year period in two blocks (four years and two years), with imports to be made within 24 months of authorisation. Authorisations require a bond with 100% bank guarantee (subject to limited exemptions), impose actual user conditions, permit third party exports under conditions, allow installation certificates from customs or chartered engineers, and require EODC for redemption. EPCG imports are optionally exempt from IGST/cess and domestic supplies are treated as deemed exports eligible for GST refund.