Empanelment of chartered engineers for valuation of imported second-hand machinery; advisory reports, one-year panel, applicant certification required. Empanelment of Chartered Engineers for valuation of imported second-hand machinery and equipment requires affiliation to the Institution of Engineers (India), documented specialization and experience, submission of supporting certificates, and adherence to CBEC Circular No. 25/2015; empanelled engineers provide advisory certificates, bear service charges by importers, serve on a one-year reviewable panel, must submit periodic self-appraisals, and face removal or penalties for false information.