Final answer:
When a pilot receives clearance that would cause a deviation from a rule, it means they can deviate from the standard flight path set by the Federal Aviation Administration. This can occur in situations such as avoiding severe weather or emergencies.
Step-by-step explanation:
When a pilot receives clearance that would cause a deviation from a rule, it means that they have been given permission to deviate from the standard flight path or rules set by the Federal Aviation Administration. This can happen in certain circumstances such as avoiding severe weather conditions or dealing with an emergency situation. For example, if there is a thunderstorm in the pilot's intended flight path, they may receive clearance to take a different route to ensure the safety of the aircraft and passengers.