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Class 8421 - Foreign affairs

PSIC Class 8421 covers Foreign affairs. Current child subclasses include Foreign Affairs. This four-digit layer is useful when comparing neighboring activities before landing on the five-digit subclass most closely...

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

Practical summary

Class 8421 sits in the PSIC 2019 hierarchy under O Public Administration and Defense; Compulsory Social Security > 84 Public Administration and Defense; Compulsory Social Security > 842 Provision of services to the community as a whole. This class usually fans out into more specific subclasses such as Foreign Affairs. 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 Foreign Affairs. 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 Foreign Affairs. 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: Administration and operation of the ministry of foreign affairs and diplomatic and consular missions stationed abroad or at offices of international organizations Administration, operation and support for information and cultural services intended for distribution beyond national boundaries Aid to foreign countries, whether or not routed through international organizations Provision of military aid to foreign countries Management of foreign trade, international financial and foreign technical affairs. This class excludes international disaster or conflict refugee services, see 8890.

FAQ

What does PSIC Class 8421 cover?

PSIC Class 8421 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Foreign affairs.

How do I compare Class 8421 with the sibling classes?

Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include 8422 Defense activities and 8423 Public order and safety activities.

Why does Class 8421 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.