Form 5310 "Procedural Requirements Checklist"

When filing the 5310 to terminate a plan, is there a requirement to submit and fill out the Procedural Requirement Checklist?  I previously used this checklist as a frame of reference and reminder as to what has to be filed with the 5310. I'm not aware of any requirement that this checklist  has to be completed and filed with the 5310. Any thoughts on this?

it didnt used to be a requirement but Ive had reviewers require it

  sorry I hit send too quickly, it appears they are requiring the checklist this year.