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NASDS Divers

In 1999, NASDS - The National Association of Scuba Diving Schools - merged with SSI - Scuba Schools International - and in 2001 the NASDS Certification Cards were discontinued. 

You will need to contact your local SSI Dive Center/Resort and request an experienced diver program to be crossed over to SSI by an active and current SSI Instructor.
It is at the instructor's discretion whether or not to issue a new c-card.