Section 11. For purposes of sections 1 to 10, inclusive of this chapter, the following terms as they may appear in other statutory provisions referred to in this chapter shall have the following meanings:

“Awarding authority”, “contracting authority”, “contracting body”, or “public body”, a public agency.

“General contractor”, “contractor”, or “contractor principal”, a construction management at risk firm.

“Subcontractor”, a subcontractor and trade contractor except that the term “subcontractor” in subsection (3) of section 39F of chapter 30 shall mean a trade contractor pursuant to subsection (a) and a subcontractor pursuant to subsection (j) of section 8.