Which form is used to change an authorization on an allowance source code (ASC)?

The correct form used to change an authorization on an allowance source code (ASC) is AF Form 601. This form is specifically designed for managing equipment authorizations within the Air Force. It allows the necessary adjustments to be documented clearly and systematically, ensuring that any changes to the allowance source code are properly recorded and processed.

AF Form 601 plays a crucial role in maintaining accurate records of equipment authorizations which is essential for effective logistics and inventory management within the Air Force. By using this form, personnel can ensure that changes are made consistently and in accordance with established protocols, thus contributing to operational readiness and efficiency.