What does SDZ stand for?

San Diego Zoo (SAUS)

South Dakota Homemade Boats - NCIC boat manufacturer code (NCIC)

Southern Pines, NC - Location identifier - FAA (FAAL)

Space Defense Zone - Military (ACAE)

Stardust Ventures - Vancouver Stock Exchange symbol

Stimmen der Zeit (BJA)

Supply Drop Zone (SAUS)

Surface Danger Zone - Military