Underlying principles

Use the official principles page for interpretation, classification boundaries and the logic behind industrial grouping.

Design approach

Entity-first, honest mapping, operational use.

Entity-firstStructure should follow the official classification entity.
Honest mappingCrosswalks need context, not fake 1:1 shortcuts.
Operational useDesigned for searches, references and policy work.

What it does

Defines how establishments are grouped into industries for official statistics and comparisons.

What it does not do

It is not a simple direct replacement for ISIC, NACE or NAICS. Mappings need context and editorial care.