How much is it to put my last name on my son birth certificate?

Question:

How much is it to put my last name on my son birth certificate?

Best Answer - Chosen by Asker: It all depends on what state you live in. You can do a search on line. I did one for the State of TX and here is what I got
•The Application for a New Birth Certificate Based on Parentage, signed by both parents in the presence of a notary public, and a completed Acknowledgement of Paternity form (VS-159.1) signed by the mother and biological father. In addition, the man presently listed as the father on the existing birth certificate is required to sign the denial portion of the Acknowledgement of Paternity form.