What term describes the point where a vent pipe ends?

The term "Vent Termination" is recognized as the point where a vent pipe ends because it specifically refers to the designated outlet of a vent system. This term is widely used in plumbing and mechanical codes to describe the final exit point of gases and odors being vented from a building. Vent termination is crucial as it ensures that harmful gases are safely expelled to the outside atmosphere, away from windows, doors, and other openings that could allow fumes to re-enter the building.

This terminology emphasizes the importance of proper venting systems in maintaining indoor air quality and meeting health and safety standards. Other terms, while they may imply the ending point of a vent pipe, do not have the same regulatory usage or recognition, making "Vent Termination" the appropriate and most accepted choice in the context of mechanical inspections and plumbing codes.