Interesting question! The wording in the policy is a little ambiguous in my opinion:
https://www.isc2.org/Register-for-Exam
Under the Results Reporting section it says:
Retake Policy
You can sit for ISC2 exams up to three times within a 12-month period.
For the CISSP-CAT, CISSP, SSCP, CAP, CSSLP, ISSAP, ISSEP and ISSMP:
If you don’t pass the exam the first time, you can retest after 30 days.
If you don’t pass a second time, you can retest after an additional 90 days.
If you don’t pass a third time, you can retest after 180 days from your most recent exam attempt.
For the CCSP and HCISPP:
If you don’t pass the exam the first time, you can retest after 90 days.
If you don’t pass a second time, you can retest after an additional 90 days.
If you don’t pass a third time, you can retest after 180 days from your most recent exam attempt.
As it's stated as the "Retake Policy" that implies it's 3 times per certification, but then the wording "You can sit for ISC2 exams up to three times within a 12-month period" reads to me like it could be just 3 exams per year regardless of the certification!
Have you tried to schedule the exam and it won't let you?
