Other

Reaction initiators, accelerators, and catalytic preparations, other

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 3815 90 00 (other reaction initiators, reaction accelerators, and catalytic preparations not elsewhere specified) 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 (IEC), bill of entry, commercial invoice, packing list. Specific catalytic preparations — particularly those used in petroleum refining or as supported noble-metal catalysts — may be classified under more specific headings within Chapter 38 or adjoining chapters that carry distinct compliance obligations.

No partner government agency notification covers this tariff line.

A word of counsel

The residual nature of this tariff line — "not elsewhere specified or included" — means customs officers scrutinise product descriptions closely; a catalyst that fits a more specific heading in Chapter 38 or Chapter 28 (inorganic chemicals) will be re-classified on examination, triggering retrospective compliance and potential detention. Importers should obtain a precise technical specification, including chemical composition and intended reaction use, before relying on the absence of compliance at this tariff line.

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Frequently asked

Does HSN 3815 90 00 require any pre-import registration?

A valid Importer-Exporter Code is required for any commercial import; no product-specific registration applies to this tariff line.

What changes if the catalytic preparation is more specifically described elsewhere in the tariff?

Catalytic preparations that fit a named heading in Chapter 38 or Chapter 28 will be classified there instead, and the applicable compliance regime for that more specific tariff line will apply.

Last verified against gazette notifications: 2026-05-16. Source: BIS / DGFT / Indian Customs CUSDATA.