Multiple Choice

Three electrical contractors each face a supply-chain delay on a specified panel board during a commercial tenant build-out. Review how each contractor handled the substitution and determine which approach best protects the contractor from liability during a future inspection or customer dispute.

Contractor A: Found a code-compliant alternative, obtained the customer's written approval, and recorded the original spec, the substitute, the reason for the change, and the approval in the project file — but forgot to update the purchase order, so the supplier shipped the originally specified panel.

Contractor B: Found a less expensive alternative that also meets code, swapped it without contacting the customer, and noted the cost savings and the substitute part number in the project file.

Contractor C: Found a code-compliant alternative, obtained the customer's written approval, recorded the original spec, the substitute, the supply-delay reason, and the signed approval in both the project file and on the purchase order.

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Updated 2026-05-04

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