There are many different situations for changing a birth certificate using a DNA test. As a result, it can be a confusing situation to be in. For instance, there is a difference between removing the name of a father, to changing the name of the father on a birth certificate.
Local registry offices can handle small changes to a child’s birth certificate. But, for changes like altering the name of a child’s father, a General Register Office (GRO) must deal with it.
The link below details some of the situations that may arise and how paternity testing can help. Also, the information provides helpful advice.