South Carolina Code of Regulations
Chapter 8 - BUILDING CODES COUNCIL
Article 6 - MODULAR BUILDING CONSTRUCTION
Section 8-621 - Sale of Modular Buildings

(a) if the modular building is purchased by a residential builder operating as a firm, the firm must meet the requirements of Sections 40-59-400 and 40-59-410, including, when applicable, the requirement to hold a residential business certificate of authorization issued by the Residential Builders Commission, or

(b) if the modular building is purchased by a company operating as a licensed general contractor, the company must meet the definition of an entity in Section 40-11-20 (7) and have a designated primary qualifying party, as required under Section 40-11-230. The primary qualifying party shall serve as the principal individual responsible for directing or reviewing work performed by the licensee in a particular license classification or subclassification; and

(c) the general contractor or residential builder must sell the modular building directly to the consumer and perform, and take responsibility for, erection of the structure and all its related systems and site work or must contract to have this work performed by a properly licensed general contractor or residential builder. A sales contract is required and must identify the seller and buyer by name.