Key facts
Ws
PSIC 2019 Navigation-first hub Class 3700 - Sewerage
PSIC Class 3700 covers Sewerage. Current child subclasses include Sewerage. This four-digit layer is useful when comparing neighboring activities before landing on the five-digit subclass most closely aligned with the...
Next step
Child codes
These are the next codes most users should open after this hub page.
About this level
Practical summary
Class 3700 sits in the PSIC 2019 hierarchy under E Water Supply; Sewerage, Waste Management and Remediation Activities > 37 Sewerage > 370 Sewerage. This class usually fans out into more specific subclasses such as Sewerage. It is the level people use when they already know the activity family but still need the exact five-digit match.
Administrative context
Where this code is used
This class is used when a business can already narrow the activity family and only needs to compare the final subclasses such as Sewerage. It is the level most often checked before a five-digit decision is finalized.
Selection note
How to choose it
Use this class to choose between its final subclasses such as Sewerage. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.
Official note
Source-backed description
This class includes: Operation of sewer systems or sewer treatment facilities Collecting and transporting of human or industrial wastewater from one or several users, as well as rain water by means of sewerage networks, collectors, tanks and other means of transport (sewage vehicles, etc.) Emptying and cleaning of cesspools and septic tanks, sinks and pits from sewage; servicing of chemicals toilets Treatment of wastewater (including human and industrial wastewater, water from swimming pool, etc.) by means of physical, chemical and biological processes like, dilution, screening, filtering, sedimentation etc. Maintenance and cleaning of sewers and drains, including sewer rodding
FAQ
What does PSIC Class 3700 cover?
PSIC Class 3700 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Sewerage.
How do I compare Class 3700 with the sibling classes?
Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include nearby sibling codes.
Why does Class 3700 matter for a filing decision?
It is usually the last broad checkpoint before the five-digit subclass choice, so it is the right place to catch near-miss classifications.