PSIC PSICph
Mf Section C Manufacturing
PSIC 2019 Navigation-first hub

Class 1990 - Manufacture of other fuel products

PSIC Class 1990 covers Manufacture of other fuel products. Current child subclasses include Manufacture of other Fuel Products. This four-digit layer is useful when comparing neighboring activities before landing on the...

Level Class
Hierarchy depth 4/5
Children 1
Last verified 2026-08-13
About this level

Practical summary

Class 1990 sits in the PSIC 2019 hierarchy under C Manufacturing > 19 Manufacture of Coke and Refined Petroleum Products > 199 Manufacture of other fuel products. This class usually fans out into more specific subclasses such as Manufacture of other Fuel Products. 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 Manufacture of other Fuel Products. 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 Manufacture of other Fuel Products. If two options look close, compare the exact activity, the outputs and the way the business actually earns revenue.

FAQ

What does PSIC Class 1990 cover?

PSIC Class 1990 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Manufacture of other fuel products.

How do I compare Class 1990 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 1990 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.