Final answer:
The FAR that deals with descending below the published decision altitude/height or minimum descent altitude is FAR 91.175.
Step-by-step explanation:
The subject of this question is Aviation. It is specifically related to the Federal Aviation Regulations (FAR) which govern aviation activities in the United States.
The FAR that deals with descending below published Decision Altitude/Height (DA/DH) or Minimum Descent Altitude (MDA) is FAR 91.175. This regulation outlines the rules and procedures to follow when conducting instrument approach and landing operations.
For example, if the weather conditions are below the published minima for an approach, pilots are prohibited from descending below the DA/DH or MDA without the required visual references.