Where does Pennsylvania return show what additional documents need to be mailed?

Where does my Pennsylvania tax return and/or TurboTax state what documents I need to mail in with my Pennsylvania tax return? Note that I am mailing in the state return, not E-filing.

 

I saw there were some posts about this previously. However, I can't find the source of the information. I've searched my return for the words "submit," "attach," "photocop," and haven't found anything. A post from last year said it was on the cover sheet, but my cover sheet only says:

 

Be sure to mail all pages of your signed return along with any required attachments.

Mail your return and attachments to:
Pennsylvania Department of Revenue
Refund/Credit Requested
3 Revenue Place
Harrisburg, PA 17129-0003


I know I need to submit my 1009-R.

 

I also plan to E-mail them to [email address removed]