That means that you would be able to pursue support through the U.S. But they relatively very few and Costa Rica doesn't appeat to be one of them. Here is a link to a U.S. site which handles such matters.
http://www.acf.hhs.gov/programs/css/international
You will have to get a Costa Rican attorney to pursue support in Costa Rica.
Answered on Jan 31st, 2013 at 6:12 PM