Your CCST credential is valid for three years, ending on the expiration date printed on your CCST certificate and wallet card.
The renewal fee is as follows for renewal by Professional Development Points (PDPs):
$190 ISA Member
The renewal fee is as follows for renewal by Exam:
To renew your CCST credential, you must submit/postmark your Renewal Form showing 90 PDPs before your certificate expiration date.
If you miss your certificate expiration date deadline for renewing your certification, you can still reinstate your certification during your four-month grace period—this starts immediately after your certificate expiration date. To reinstate your certification status, you must submit/postmark your renewal application showing 90 PDPs before the end of your four-month grace period.
If you do not submit/postmark your renewal application before your grace-period ends, your certification is considered lapsed. In this case, you will have to submit a CCST exam application and sit for and pass the appropriate CCST level exam to be re-certified.
The Renewal Policies gives a list of activities that count as PDPs.