Section 103B-2 - Application of chapter(a) This chapter shall apply to all construction procurements under chapter 103D; provided that this chapter shall not apply to procurements for professional services under section 103D-304 and procurements for small purchases under [section] 103D-305.(b) This chapter shall apply to any subcontract of $50,000 or more in connection with any general contract otherwise covered by this chapter.