How many publications are there? Name them.

• A. Two. Supplement and Interim Change
• B. Three. Supplement, Interim Change, and Manual
• C. One. Manual Only
• D. Four. Supplement, Interim Change, Manual, and Handbook

Answer: (A)

The key idea is how updates to aviation publications are communicated between full revisions. There are two types of update publications: supplements and interim changes. A supplement adds material to the existing document without replacing it, extending or clarifying content while the core manual stays in effect. An interim change is a temporary update that addresses urgent safety or procedural changes and remains in place until the next formal revision. These two cover both ongoing additions and urgent fixes, so the correct answer specifies two publications and names them. The other options introduce a full Manual or a Handbook as separate update publications, which isn’t how revisions are conveyed between cycles.