Of a cylinder capacity not exceeding 100 cc
Marine propulsion diesel engines, cylinder capacity not exceeding 100 cc
HSN 8408 10 91 (marine propulsion compression-ignition engines of cylinder capacity not exceeding 100 cc) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code, bill of entry, commercial invoice, packing list. Larger marine diesel engines, industrial diesel engines, or diesel engines for vehicles under Chapter 84 and Chapter 87 may fall under sibling tariff lines that do carry compliance obligations.
The absence of compliance at this tariff line does not extend to all compression-ignition engines under heading 8408: higher-capacity marine propulsion engines and diesel engines classified for automotive or generating-set applications each carry their own compliance regimes. Re-classification on customs examination — triggered by cylinder capacity, end-use declaration, or vessel type — can expose an importer to retrospective compliance and detention pending resolution. Verify cylinder capacity documentation and the precise intended marine application before relying on the absence of compliance here.