Which phraseology is used to amend a previously issued clearance?

Which phraseology is used to amend a previously issued clearance?

• A. Amendment to route Rest Of Route Unchanged
• B. Rest Of Route Unchanged Amendment
• C. Amended Route With New Altitude
• D. Route Amendment In Effect

Answer: (A)

When you need to adjust a previously issued clearance, you use precise phraseology to indicate what changes and what stays the same. The standard form is “Amendment to route. Rest of route unchanged.” This makes clear that the route portion is being altered, while everything else in the clearance remains in effect. It’s concise and unambiguous for the pilot, preventing confusion about what was changed. The other phrasings either place the words awkwardly, imply changes to altitude rather than the route, or fail to state that the rest of the cleared route remains unchanged, which could lead to misunderstandings. So the first option is the correct choice.

When you need to adjust a previously issued clearance, you use precise phraseology to indicate what changes and what stays the same. The standard form is “Amendment to route. Rest of route unchanged.” This makes clear that the route portion is being altered, while everything else in the clearance remains in effect. It’s concise and unambiguous for the pilot, preventing confusion about what was changed. The other phrasings either place the words awkwardly, imply changes to altitude rather than the route, or fail to state that the rest of the cleared route remains unchanged, which could lead to misunderstandings. So the first option is the correct choice.