Not anymore. As part of the FCC's AM revitalization plan, the "ratchet clause" was abolished. See page 15:
As I recall, those proposals were only partly implemented. Most of the highest interfering stations "upgraded" a long time ago. You don't see many applications for those stations anymore. I have upgraded in quotes because most of those changes were not unqualified successes.
Do you have a link to the Final Report and Order?
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