I don’t know what CAP 413 is, but I’m deducing it’s a reg on how to communicate clearly. Undoubtably, one of the “takeaways” from this incident will be a less frantic, slower paced, communication flow from controllers at JFK. As I’ve stated before, as a native New Yorker I’m used to the pace and speed of New Yorker’s speech, but it’s not appropriate for aviation communications at JFK.