"Engineering, procurement, and construction management" (EPCM) is a common form of contracting arrangement for very large projects within the infrastructure, mining, resources and energy industries. In an EPCM arrangement, the client selects a head contractor who manages the whole project on behalf of the client. The EPCM contractor coordinates all design, procurement and construction work and ensures that the whole project is completed as required and in time. The EPCM contractor may or may not undertake actual site work.