Hello there!
The answer is absolutely. The process is pretty simple.
To find the form to have the materials shipped to you just select the "Electronic Forms" button inside of the box that is labeled "What would you like to do?". You can find this box on the right-hand side of your My Courses page. From there you would select the "Shipping Waiver Form", which of course will bring you to a PDF version of the form. After that you would just fill out the form and either mail or fax it to Penn Foster.
I hope that this helps you and I wish you the best of luck in your studies. Have a splendid day!