Where the rubber compound content is less than 25% by weight
Endless synchronous belts, 60–150 cm circumference, low rubber compound content
HSN 4010 35 10 (endless synchronous belts of an outside circumference exceeding 60 cm but not exceeding 150 cm, where rubber compound content is less than 25% by weight) 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. Other vulcanised rubber belting under Chapter 40 — particularly conveyor belts or transmission belts with higher rubber compound content or different dimensional specifications — may fall under sibling tariff lines that carry distinct compliance obligations.
The absence of compliance at this tariff line turns on two precise parameters: the outside circumference band (exceeding 60 cm, not exceeding 150 cm) and the rubber compound threshold (below 25% by weight). A product that exceeds the circumference band, or whose rubber compound content equals or exceeds 25% by weight, is classified under a different tariff line and may attract its own compliance regime. Misstatement of either parameter on the bill of entry risks re-classification by customs, with detention pending retrospective compliance.