Business & LicensingQuestion 624 of 690

Under the CSLB's classification rules, a C-specialty contractor may take a prime contract that involves work outside its classification only if:

a.The added work is less than $5,000
b.The contractor obtains a temporary cross-classification permit from CSLB
c.The owner signs a written waiver acknowledging the contractor is unlicensed for that trade
d.The work outside the specialty is incidental and supplemental to the performance of the contract in the licensed specialty

Explanation

Bus. & Prof. Code §7059 and CCR Title 16 §831 allow a specialty (C-) contractor to perform work outside its classification only when that work is 'incidental and supplemental' to the work in the contractor's licensed classification. There is no $5,000 carve-out, no 'temporary cross-classification permit,' and an owner waiver cannot legalize unlicensed work — §7031 still denies compensation to an unlicensed contractor for work requiring a license. The 'incidental and supplemental' test is fact-specific and frequently litigated.

Law Reference: Bus. & Prof. Code §7059

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