(a) For the purpose of this Article any person or firm or corporation who for a fixed price, commission, fee, or wage, undertakes to bid upon or to construct or who undertakes to superintend or manage, on his own behalf or for any person, firm, or corporation that is not licensed as a general contractor pursuant to this Article, the construction of any building, highway, public utilities, grading or any improvement or structure where the cost of the undertaking is forty thousand dollars ($40,000) or more, or undertakes to erect a North Carolina labeled manufactured modular building meeting the North Carolina State Building Code, shall be deemed to be a "general contractor" engaged in the business of general contracting in the State of North Carolina.
(b) This section shall not apply to the following:
(1) Persons, firms, or corporations furnishing or erecting industrial equipment, power plan equipment, radial brick chimneys, and monuments.
(2) Any person, firm, or corporation who constructs or alters a building on land owned by that person, firm, or corporation provided (i) the building is intended solely for occupancy by that person and his family, firm, or corporation after completion; and (ii) the person, firm, or corporation complies with G.S. 87-14. If the building is not occupied solely by the person and his family, firm, or corporation for at least 12 months following completion, it shall be presumed that the person, firm, or corporation did not intend the building solely for occupancy by that person and his family, firm, or corporation.
(3) Any person engaged in the business of farming who constructs or alters a building on land owned by that person and used in the business of farming, when the building is intended for use by that person after completion.