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Class 4312 - Site preparation

PSIC Class 4312 covers Site preparation. Current child subclasses include Site Preparation. 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 4312 sits in the PSIC 2019 hierarchy under F Construction > 43 Specialized Construction Activities > 431 Demolition and site preparation. This class usually fans out into more specific subclasses such as Site Preparation. 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 Site Preparation. 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 Site Preparation. 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 preparation of sites for subsequent construction activities. This class includes: Clearing of building sites Earth moving: excavation, landfill, leveling and grading of construction sites, trench digging, rock removal, blasting, etc. Drilling, boring and core sampling for construction, geophysical, geological or similar purposes This class also includes: Site preparation for mining: overburden removal and other development and preparation of mineral properties and sites, except oil and gas sites Building site drainage Drainage of agricultural or forestry land This class excludes: Drilling of production oil or gas wells, see 0610, 0620; Test drilling and test hole boring for mining operations (other than oil and gas extraction), see 0990; Decontamination of soil, see 3900; Water well drilling, see 4220; Shaft sinking, see 4390; Oil and gas field exploration, geophysical, geological and seismic surveying, see 7110.

FAQ

What does PSIC Class 4312 cover?

PSIC Class 4312 is the four-digit layer that sits just above the final subclasses and usually defines the activity family for Site preparation.

How do I compare Class 4312 with the sibling classes?

Read the neighboring classes and compare the exact wording of the child subclasses. Nearby options include 4311 Demolition.

Why does Class 4312 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.