It's a confidential record registered in the county where purchased; copies are only made available to the couple who wed unless a court order is provided. This maintains a couple's privacy which is usually the reason for this type of certificate. To obtain a confidential marriage license, the couple must:
1) wed in the county in which the license was obtained
2) be 18 years old and already living together--you'll need to sign an affidavit attesting to that fact.
Only the officiant signs the certificate, no witnesses. For details, visit your local County Clerk's website or office.
Helpful tips from your wedding officiant, Rev Saundra Anderson