I live in Oregon and won custody of my son who lived in California after child protective services removed him from his mother's custody for the second time. How do I have my name put on his birth certificate and change his last name to mine. Can this be done here in Oregon or do I have to go to court in California?Paternity has already been established and the state had been garnishing my paycheck for 2 years. I filed for joint custody / visitation after she went into hiding with my son. The mother has bipolar and schizophrenia and had locked my son in a room isolating him from all human contact . My son was 4 1/2 years old and in diapers with the communication skills of a 2 year old when child protective services took him from his mother. Apparently, this was the second time protective services had placed him in fostercare. Unaware of this, I moved to Oregon last year to be with family after being laid-off from my job and all my efforts to locate my son had failed . She would never agree to the name change. There is a final hearing in 2 weeks to establish a schedule for supervised phone calls and visitation. I was told the worker will handle it and I do not have to attend. Can the worker submit an afidavit for a name change in my behalf at this hearing?