If you accessed the course before July 1st, 2015: From the course homepage, click the "Quiz" tab at the top, and then click the link for "Certificate of Completion". You may need to re-take the quiz, if your access previously expired.
If your course access has expired, please email email@example.com and request an extension. Once the extension has been granted, you will have 30 days to re-take the quiz and print your certificate.
Otherwise: Click the "Certificate of Completion" link underneath the Textbook box on the main course page.
Please save a copy of your certificate on to your computer, for your records.