If you want to get a correction made to your Birth certificate, you have to fill an Application for Correction form and send it to this address:
Illinois Department of Public Health
Division of Vital Records
605 W. Jefferson St
Springfield, IL 62702-5097
With the form you have to send a $15 fee and the documents required for the correction of your first name. You can pay the fee through a check or money order. The processing of your application may take 23 to 30 weeks.
You can find the document requirements and further detailshere.
Illinois Department of Public Health
Division of Vital Records
605 W. Jefferson St
Springfield, IL 62702-5097
With the form you have to send a $15 fee and the documents required for the correction of your first name. You can pay the fee through a check or money order. The processing of your application may take 23 to 30 weeks.
You can find the document requirements and further detailshere.