On an IFR plate, what does a green airport indicate?

A green airport depicted on an IFR (Instrument Flight Rules) plate signifies that an Instrument Approach Procedure (IAP) is available for that airport. This means that pilots can conduct standard instrument approaches using specific published procedures, which include approaches relying on navigational aids and instrument flying techniques.

This feature is crucial for pilots flying under IFR conditions, as it provides them with the necessary guidance and procedures to safely approach and land at the airport in reduced visibility or adverse weather conditions. An airport with a green symbol indicates that it is equipped to handle IFR traffic and that procedures are in place to assist pilots during their approach.

In contrast, other options describe airports that either lack appropriate instrument procedures or are not accessible for certain types of flying, meaning they do not cater to IFR traffic. Understanding these symbols and their meanings is essential for safe and effective navigation in the airspace system.