I plan to get Certified on Sitecore 9.0 very soon. On the Sitecore® 9.0 Certified Platform Associate Developer Exam Study Guide page it mentions this:

The Sitecore Certification Program includes two levels, the Sitecore Certified Associate and the Sitecore Certified Professional.

Yet, when I go to register for an exam, I only see a Sitecore® 8.2 Professional Developer exam for Sitecore 8.2 and a Sitecore® 9.0 Certified Platform Associate Developer for Sitecore 9.0. Why no "Professional" exam for 9.0?

This is kind of confusing. If I take the 9.0 Associate Developer exam and pass, can I say I'm a Sitecore Certified Professional? Or do I also need to take the Sitecore 8.2 Professional Developer exam?