Are additional ATC services optional according to workload guidelines?

The statement that additional ATC services are required as workload permits accurately reflects the operational guidelines for air traffic controllers. These guidelines recognize that while controllers should provide the best possible service, the priority is always on maintaining safety and efficiency based on the current workload.

When traffic volume increases or the complexity of operations rises, controllers may need to prioritize fundamental safety tasks over providing additional services. Therefore, if the workload allows, controllers should extend these additional services; however, they are not mandatory in every situation. This flexibility is essential for adapting to various traffic scenarios and ensuring that safety remains the top priority.

The other options suggest a range of interpretations about when additional services may or may not be offered, which are not aligned with the operational priorities set for air traffic control.