A same-sex couple in California has won a federal court ruling that their adopted son's Louisiana birth certificate must bear the names of both adoptive fathers.

The facts are so clear that no trial is needed, U.S. District Judge Jay Zainey wrote.

"What a great Christmas present for these guys!" said Kenneth D. Upton Jr. who represented Oren Adar and Mickey Ray Smith of San Diego.

In his ruling Monday, Zainey said Louisiana's Office of Vital Records must give full faith and credit to the New York State court in which Adar and Smith adopted the boy, he ruled Monday. The office had refused to issue a birth certificate listing both as the boy's legal parents.

Upton, reached at home Saturday evening, said he hopes to get a birth certificate in the coming week but doesn't know whether the Louisiana Attorney General's Office — which is in charge, although a state health department attorney argued the case — will decide to appeal.

The attorney general's office will look into the matter next week, said Tammi Arender Herring, spokeswoman for Attorney General James "Buddy" Caldwell.

Upton, of Lambda Legal Defense and Education Fund Inc. of Dallas, said it is the fourth case of its kind that he knows of. Cases in Oklahoma, Virginia and Mississippi also were decided in the parents' favor — the Mississippi case decided at trial about a month ago, he said.