A permit correction is a request to clarify, revise or add information to a submittal. The most useful response is organized around the reviewer's comments rather than simply uploading a new plan set with no explanation.
Building departments use their own terminology, deadlines and procedures. Treat this as a practical orientation and verify the current rule with the jurisdiction that issued — or would issue — the permit.
Not necessarily. Corrections are commonly part of the review process and usually mean the reviewer needs changes or additional information before continuing.
Yes. A complete response should address each applicable comment and point the reviewer to the revised material.