Which of the following is not required of licensed contractors under workmanship standards?

Licensed contractors are held to specific workmanship standards to ensure safety, quality, and compliance with legal requirements. Among the listed options, hiring an inspector for jobs in cities without building codes is not a requirement for licensed contractors.

In areas where there are no building codes, the responsibility of hiring an inspector does not apply since the absence of codes means there may not be a formal inspector or inspection process in place. Licensed contractors are still expected to adhere to relevant workmanship standards, but the necessity for an inspector becomes irrelevant if no building codes exist.

On the other hand, performing work to code, obtaining applicable permits, and following industry best practices are all essential components of a contractor's responsibilities. These requirements ensure that the contractor’s work meets safety and quality standards recognized in the industry, which benefits both the contractor and the client.