Ws Section E Water & Waste
PSIC 2019 Navigation-first hub

Division 37 - Sewerage

PSIC Division 37 covers Sewerage. Child codes include Sewerage. It is the shortlist layer for broad activities that still need to be narrowed toward a practical group, class or subclass.

Level Division
Hierarchy depth 2/5
Children 1
Last verified 2026-05-12
Next step

Child codes

These are the next codes most users should open after this hub page.

About this level

Practical summary

Division 37 sits in the PSIC 2019 hierarchy under E Water Supply; Sewerage, Waste Management and Remediation Activities. This division collects tightly related groups, with child examples such as Sewerage. It is the main bridge between a broad sector label and the more precise groups below it.

Administrative context

Where this code is used

This division is used when the first pass is too broad and the work needs to be split into groups such as Sewerage. It helps with registration wording, sector analytics and review of near-miss options.

Selection note

How to choose it

Use this division as the first narrowing step. Compare child groups such as Sewerage and move to the group that best matches the real activity, not the marketing description.

Official note

Source-backed description

This division includes the operation of sewer systems or sewage treatment facilities that collect, treat, and dispose of sewage.

FAQ

What does PSIC Division 37 cover?

PSIC Division 37 groups the main activity family for Sewerage and acts as the first narrowing step below the section level.

How do I compare Division 37 with nearby divisions?

Read the child groups side by side and compare the exact operational wording. The closest neighboring options are 36 Water Collection, Treatment and Supply and 38 Waste Collection, Treatment and Disposal Activities; Materials Recovery.

Why does Division 37 matter for filing?

It is the level that helps you narrow a broad section into the right group before you reach a class or subclass decision.