U.S. District Judge Christina A. Snyder ruled the so-called widow penalty doesn't necessarily require that immigrants' permanent residency applications be denied when their American spouses die. Citing a 2006 decision by the 9th U.S. Circuit Court of Appeals, Snyder ruled this week that applicants don't lose their status as spouses of U.S. citizens if the death occurs before the government rules on their applications.

The decision, if made final, would be a victory for more than 200 people across the country who have been affected by the widow penalty, said attorney Brent Renison, who filed the class-action lawsuit in Los Angeles.

"This case is very significant because it's the first that follows the circuit court decision and gives guidance to the agency on what it can and cannot do in these situations," Renison told The Associated Press on Tuesday.

The U.S. Citizenship and Immigration Service has argued the law requires that residency applications be rejected for immigrants whose American spouses die within two years of being married.