Which organization prescribes the standard instrumentation of the concert band?

The American Band Association is recognized for establishing guidelines and standards for band instrumentation, particularly in the context of concert bands. This organization has played a significant role in defining the typical makeup of a concert band, including the variety of woodwind, brass, and percussion instruments typically included in performances. This standardization helps ensure consistency in band compositions and arrangements across educational and professional settings.

While other organizations may focus on broader aspects of music education or advocacy for bands, the specific role of determining concert band instrumentation falls primarily to the American Band Association. Their established standards serve as a framework for educators, conductors, and performers, guiding the formation of concert bands and ensuring a balanced and representative instrumentation.