A subcontract is a contract that assigns part of an existing contract to a different party.
An example of subcontracting is in the area of medical transcription in the U.S. Where large companies take on contracts for medical transcription services, they in turn then contract out the actual work to individuals or smaller companies, the subcontractor.
When subcontracting, a documented agreement covering the technical and nontechnical (e.g., delivery dates) requirements is established and is used as the basis for managing the subcontract.
Changes to the subcontract are made with the involvement and agreement of both the prime contractor and the subcontractor.
The subcontract manager is responsible for coordinating the technical scope of work to be subcontracted and the terms and conditions of the subcontract with the affected parties.