Ut Section D Utilities
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Class 3530 - Steam, Air Conditioning Supply and Production of Ice

PSIC Class 3530 covers Steam, Air Conditioning Supply and Production of Ice. Current child subclasses include Steam, Air Conditioning Supply and Production of Ice. This four-digit layer is useful when comparing...

Level Class
Hierarchy depth 4/5
Children 1
Last verified 2026-05-12
About this level

Practical summary

Class 3530 sits in the PSIC 2019 hierarchy under D Electricity, Gas, Steam and Air Conditioning Supply > 35 Electricity, Gas, Steam and Air Conditioning Supply > 353 Steam, Air Conditioning Supply and Production of Ice. This class usually fans out into more specific subclasses such as Steam, Air Conditioning Supply and Production of Ice. 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 Steam, Air Conditioning Supply and Production of Ice. 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 Steam, Air Conditioning Supply and Production of Ice. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.

FAQ

What does PSIC Class 3530 cover?

PSIC Class 3530 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Steam, Air Conditioning Supply and Production of Ice.

How do I compare Class 3530 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 3530 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.