Key facts
Code summary
Code 5223
Official title Service Activities Incidental to Air Transportation
Version PSIC 2019
Source layer PSA / BSP
Section H - Transportation and Storage
Lg
PSIC 2019 Navigation-first hub Class 5223 - Service Activities Incidental to Air Transportation
PSIC Class 5223 covers Service Activities Incidental to Air Transportation. Current child subclasses include Service Activities Incidental to Air Transportation. This four-digit layer is useful when comparing...
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Child codes
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Nearby codes
About this level
Practical summary
Class 5223 sits in the PSIC 2019 hierarchy under H Transportation and Storage > 52 Warehousing and Support Activities for Transportation > 522 Support activities for transportation. This class usually fans out into more specific subclasses such as Service Activities Incidental to Air Transportation. 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 Service Activities Incidental to Air Transportation. 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 Service Activities Incidental to Air Transportation. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.
FAQ
What does PSIC Class 5223 cover?
PSIC Class 5223 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Service Activities Incidental to Air Transportation.
How do I compare Class 5223 with the sibling classes?
Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include 5221 Service activities incidental to land transportation and 5224 Cargo handling.
Why does Class 5223 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.