EPC identifies and competitively awards subcontracts to contractors who offer the optimum combination of acceptance quality, lowest price, and ability to meet schedule. Award is also based on a firm's existing capabilities, past experience, and financial solvency.

When design drawing from contractors are require, EPC formally reviews and approves them to ensure conformity with approved design criteria.

EPC performs the following Subcontractor Management functions:

- Prepares engineering's estimates for the work(s) to be subcontracted
- Identifies and qualifies contractors
- Incorporates Work Statement and prepares Invitations for Bid
- Evaluates responses and recommends selection of contractors
- Assists in change order negotiations as requested
- Manages subcontract closeouts, including the release of liens