Exemption conditions: bond required if input tax credit used; paying integrated tax or proof of no ITC permits clearance. Amendments condition post export clearance under Advance Authorisations on furnishing a bond where GST input tax credit has been availed, binding the importer to use imported materials for manufacture and supply of taxable goods and to furnish a chartered accountant's certificate within six months; alternatively clearance is permitted on payment of integrated tax and compensation cess. Where input tax credit has not been availed, clearance without a bond is allowed upon satisfactory proof. The proviso allows fulfilment of export obligation by physical exports or specified domestic supplies; certain prior conditions are omitted.