A late 2020 change to the Aeronautical Information Manual added new Standard Service Volumes for which NAVAIDs?

The addition of new Standard Service Volumes specifically pertains to Very High Frequency Omnidirectional Range (VOR) and Distance Measuring Equipment (DME). These changes were implemented to enhance the navigation services and operational capabilities for pilots and general aviation. The new volumes define the range and service thresholds that these navigational aids are expected to cover, helping to ensure that pilots can rely on them for accurate position reporting and guidance during flight operations.

VORs are a critical element of the air navigation system, providing azimuth information to pilots, while DMEs assist in determining the distance to a VOR station. The specific update acknowledged advancements in technology and the need for better dimensional standards in the context of these traditional navigation aids, which continue to play a vital role in various flight profiles.

Other options refer to different navigational aids that did not receive this particular update in the 2020 revision of the Aeronautical Information Manual. Therefore, it is crucial to understand the relevance of VOR and DME service volumes as it directly impacts navigation accuracy and pilot decision-making in flight operations.