“Do I have to have the fathers permission to have his name on the birth certificate? Can my child have a hyphenated last name (mine and the fathers) without his permission?”

In California, State Law permits the father’s name to be reported on the birth certificate only if the couple is legally married or if, by signing a Declaration of Paternity form, the father agrees to give up his legal rights to challenge paternity. The form is available at birthing hospitals, pre-natal clinics, etc.