What is the name of a committee with the power of govern and administer?

A committee with the power to govern and administer is often referred to as an "executive committee." This type of committee typically has authority to make decisions on behalf of a larger group or organization, overseeing operations and implementing policies. Depending on the context, it may also be called a "management committee" or "board of directors." These committees play a crucial role in strategic planning and organizational governance.