What does "plate dependent" refer to in altitude descending situations?

The term "plate dependent" refers specifically to certain altitudes that are defined by approach procedures in aviation. This includes the specific altitudes that pilots must follow as outlined in the published approach plates. These altitudes are crucial for ensuring safe and efficient descent profiles during approaches to airports.

When an approach is described as plate dependent, it emphasizes the need for pilots to adhere strictly to these defined altitudes to maintain separation from obstacles and other aircraft, as well as to meet the operational requirements of the approach procedure. By following these specific altitudes, pilots can manage their descent rates and ensure compliance with the approach's profile, which is generally designed to enhance safety and efficiency during landing sequences.

Understanding this context is vital for pilots, as it directly impacts their ability to execute successful and safe landings.