Which part of the regulations contains the requirements for testing and inspection of instrument static systems?

The correct choice pertains to Part 43, appendix E, which outlines the specific regulations for testing and inspection of instrument static systems. This section provides guidelines to ensure that these systems function correctly and safely, which is crucial for the accurate performance of aircraft instruments. By establishing rigorous testing and inspection standards, the regulations aim to maintain the integrity and reliability of the instrument static system, helping to prevent failures that could compromise flight safety.

This information is vital for aviation professionals as it dictates how frequently inspections should occur and the procedures that must be followed, thereby ensuring compliance with safety standards in aviation operations. Understanding these requirements helps ensure that aircraft are maintained in a condition that is both safe and airworthy, which is the primary goal of aviation regulations.