NIC India NIC Reference
हिन्दी
Concordance

Historical concordance sources

This page tracks the official files required before old-version HSN, SAC, CPC, InSCED or ISCED lookup pages can be generated. Pending sources are not treated as proven mappings.

Readiness summary

Ready sources0
Pending sources4
Policysource-gated generation
Manifest date2026-05-05

Historical concordance pages are generated only when official source files are available locally. Pending files are shown as source requirements, not as proven mappings.

Official source requirements

LayerBridgeStatusLocal fileOfficial source
HSN / ITC-HS HS 2022 to HS 2017 pending data/sources/concordance/hs/HS2022-to-HS2017.xlsx UNSD / WCO
HSN / ITC-HS HS 2022 to HS 2012/2007/2002/1996/1992 pending data/sources/concordance/hs/ UNSD
SAC SAC to CPC pending data/sources/concordance/cpc/ CBIC / UNSD
InSCED InSCED to ISCED pending data/sources/concordance/isced/ Ministry of Education / UNESCO UIS

What will be generated after source load

  • HS legacy pages: old HS six-digit codes to current HS/HSN candidates, with relation labels for split, merge and one-to-one cases.
  • SAC international-equivalent blocks: service code to CPC bridge where official mapping exists.
  • InSCED international-equivalent blocks: education field and level pages to ISCED layers where official mapping exists.
  • Each generated mapping must expose the source file, relation type and last verified date.

Use npm run download:concordance to place source snapshots in the expected local folders, then run npm run check:concordance.