A weigh master must apply for a new license whenever there is a change in which of the following?

The correct answer is based on the fact that a weigh master's license is directly linked to the specific equipment used for weight measurement. When there is a change in the brand of the weighing device, it typically indicates that a different type of equipment may have different calibration standards, operational methods, or legal requirements associated with its use. Therefore, it is crucial for compliance and accuracy in weight verification processes to reflect this change through a new license application.

Maintaining consistency in weighing practices is essential, and a new brand can introduce variables that affect how weights are determined. By requiring a new license in this scenario, regulatory bodies ensure that all weighing activities adhere to established standards and that users are trained appropriately on the new equipment.

Changes in the legal entity of the weigh master, weighing location, or personnel involved might affect the operational environment or the individuals responsible for weighing, but they do not necessarily require a new license unless they directly impact the accountability of the equipment in use or the legal responsibilities tied to measurement practices.