Heriberto Teffeteller
Heriberto Teffeteller voted up HappyTwo BeHereTwo's answer

I found two pages from Penn Foster.  The first is the main registration info.

http://www.pennfoster.edu/admissions

The second answers about submitting 038228.  If it doesn't show exactly what you need, it demonstrates contacting them.

https://community.pennfoster.edu/thread/65519?forceNoRedirect=true