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A Class C-10 electrical contractor wants to perform concrete work on a project. Under what circumstances is this permitted?

Correct Answer

A) Only if incidental to electrical work and under $500

Specialty contractors may perform incidental work outside their classification if it's directly related to their specialty work and under the statutory limit.

Answer Options
A
Only if incidental to electrical work and under $500
B
If they obtain a joint venture license
C
Never, it's outside their classification
D
With a Class A contractor as prime

Why This Is the Correct Answer

California law allows specialty (Class C) contractors to perform work outside their classification only when that work is incidental and supplemental to their primary specialty and falls below the statutory threshold (often cited as under $500 in value). A C-10 electrician pouring a small concrete pad for electrical equipment, for example, qualifies as incidental electrical work. The dual requirements — incidental to the specialty AND under the dollar threshold — must both be met.

Why the Other Options Are Wrong

Option B: If they obtain a joint venture license

Obtaining a joint venture license allows two licensed contractors to work together on a project, but it does not grant a C-10 contractor authority to perform concrete work independently. A joint venture requires each party to work within their respective license classification.

Option C: Never, it's outside their classification

It is incorrect that a C-10 can never perform any concrete work. California law specifically carves out an exception for incidental work that is directly related to and necessary for the specialty work, provided it stays below the statutory dollar limit.

Option D: With a Class A contractor as prime

Having a Class A (General Engineering) contractor as the prime does not grant a C-10 subcontractor the ability to perform out-of-classification work. Subcontractors must still operate within their license classification regardless of the prime contractor's license type.

Memory Technique

Think 'Incidental = Incidentals Only' — like a hotel incidentals charge, it's a small, related add-on to the main service. If the concrete is a tiny add-on directly needed for the electrical job and under $500, it's allowed. Anything bigger or unrelated, call a C-8.

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