In software development, projects and programs, a change control board (CCB) is a committee that consists of Subject Matter Experts (SME, e.g. software engineers, testing experts, etc.)
[1] The main objective of a CCB is to ensure the client accepts the project.
Factors affecting a CCB's decision can include the project's phase of development, budget, schedule, and quality goals.
The authority of the Change Control Board may vary from project to project (see e.g. Consensus-based decision making), but decisions reached by the Change Control Board are often accepted as final and binding.
Less commonly, the client might directly advocate their interests as part of the Change Control Board.