NACE Rev. 2.1 hierarchy22 sections651 classes

Browse the official NACE tree.

Move from sections to divisions, groups, and classes without needing to know the code in advance. Each class links to a code page with explanations, comparisons, and exports.

Available records

Hierarchy records available here.

1,047

total nodes

divisions

287

groups

651

classes

Version selector

Choose the current hierarchy or inspect older Rev. 2 code transitions.

NACE Rev. 2.1 Rev. 2 changes

Browse the current Rev. 2.1 hierarchy by section, division, group, and class.

Switch to legacy Rev. 2 transition records when you have an older code.

Section E

WATER SUPPLY; SEWERAGE, WASTE MANAGEMENT AND REMEDIATION ACTIVITIES

4 divisions and 11 classes in this branch.

Section results Search section Hierarchy JSON Download CSV

Search this branch

Filter the selected section by code, title, or hierarchy level.

Search stays inside Section E; use global search for all NACE sections.

Loading NACE reference