CPLR 3402(a) requires an original an two copies must be filed within 10 days of service upon the other side. Apostille or Certificate of Authentication.When a document is to be used in another country, it may be necessary to have the document authenticated. You are required to have 1-original and 1-copy for the Court or 1-original and 2-copies if a stamped copy is required. Be careful when you fill out your baby's full name and your mailing address. Correcting a birth certificate can cost money or even require a trip to court. Original and certified copy are basically the same. The county clerk will certify it and swear it to be true in writing that it is an original copy. We do not issue certificates for Nassau, Suffolk or other counties in New York State. By signing in or creating an account, some fields will auto-populate with your information.