Is there a permit or park fee for Vinson, and what paperwork is mine to sort out?
Do I need a permit to climb Vinson?
Not one you apply for yourself: Antarctica has no park and no permit desk. Your operator holds the permit under the Antarctic Treaty; your part is following its environmental rules, and entering Chile.
The full answer, kept up to date: Do I need a permit to climb Vinson? The guide chapter: Vinson: Permits & costs