(1) For this part, a person who commissions a construction project is the
"principal contractor" for the construction project.
(2) However, if the person mentioned in subsection (1) engages another person as the principal contractor for the construction project and authorises the person engaged to have the management and control of the construction project, the person engaged is the
"principal contractor" for the construction project.
(3) If 2 or more persons are the principal contractor for the construction project under subsection (1) or (2) , those persons must perform the functions, or exercise the powers, of the principal contractor by acting jointly.