Key facts
Code summary
Code 4322
Official title Plumbing, Heat and Air-conditioning Installation
Version PSIC 2019
Source layer PSA / BSP
Section F - Construction
Cn
PSIC 2019 Navigation-first hub Class 4322 - Plumbing, Heat and Air-conditioning Installation
PSIC Class 4322 covers Plumbing, Heat and Air-conditioning Installation. Current child subclasses include Plumbing, Heat and Air-conditioning Installation. This four-digit layer is useful when comparing neighboring...
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Child codes
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Nearby codes
About this level
Practical summary
Class 4322 sits in the PSIC 2019 hierarchy under F Construction > 43 Specialized Construction Activities > 432 Electrical, plumbing and other construction installation activities. This class usually fans out into more specific subclasses such as Plumbing, Heat and Air-conditioning Installation. 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 Plumbing, Heat and Air-conditioning Installation. 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 Plumbing, Heat and Air-conditioning Installation. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.
FAQ
What does PSIC Class 4322 cover?
PSIC Class 4322 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Plumbing, Heat and Air-conditioning Installation.
How do I compare Class 4322 with the sibling classes?
Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include 4321 Electrical installation and 4329 Other construction installation.
Why does Class 4322 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.