In some cases, documents require Authentication by the County Clerk's Office. An Authentication certifies that the signature of the notary or commissioner of deeds is genuine. The authentication can only be obtained from the County Clerk with whom that particular signature is filed. There is a $3 fee per Authentication, and they can be obtained at the Customer Service desk at the County Clerk's Office. Vital records (Birth, death, marriage) require a raised seal with the stamped signature of the Registrar of Vital Records for Authentication.