Generally the adopted name replaces the birth name on the amended certificate and the adoptive parents names and address replace the birth parents names and address. In a few state the date of birth is changed and the place of birth. Some amended birth certificates leave the name and address of the hospital blank.
California Search Website:
Other great websites to check out!
http://www.adoptionchat.com
http://www.adoptionlists.com
http://www.adoption.com
http://www.adopting.org
http://www.adoptionregistry.com