The new Data and Information Quality Exam is available for beta testing at the San Diego DAMA Symposium. That means it is being offered for FREE to anyone who wants to take it during the conference. It will also be available at the summer MIT Information Quality conference and for DAMA chapters who want to proctor it through July.
Typically new exams go through a beta period to get feedback and statistics on the questions before it goes into full productions. Anyone who passes the beta exam may apply it toward the CDMP requirements by paying the exam fee later. It's a "try before you buy" opportunity for those who are willing to test the exam and provide feedback.