FAA A&P Airframes Oral and Practical Practice Test 2025 - Free A&P Airframes Practice Questions and Study Guide

The application of registration numbers to aircraft registered in the United States is governed by FAR Part 45. This regulation specifically addresses the identification and registration requirements for aircraft, including the use and placement of N-numbers (the registration numbers). It ensures that each aircraft registered in the U.S. has a unique identifier that is clearly visible on the aircraft's exterior.

FAR Part 45 details the size, color, and visibility requirements for these registration numbers to ensure they are legible from a certain distance, which is essential for safety, tracking, and regulatory compliance. This regulation clarifies that aircraft must display their registration in a way that adheres to these guidelines, thus maintaining consistent identification across all registered aircraft.

Choosing FAR Part 45 reflects an understanding of how regulatory structure is organized, particularly how specific parts address distinct aspects of aviation operations and safety.