"CROATIA - *Passport required. Visa not required for tourist/business stay of up to 90 days. For stays over 90 days, a visa is required and should be obtained in advance. For additional information, consult the Embassy of Croatia, 2343 Massachusetts Ave., NW, Washington, DC 20008 (202/588-8933), or the nearest Consulate General in Chicago (312/482-9902), Los Angeles (310/477-1009) or New York (212/599-3066). Internet: www.croatiaemb.org"
http://travel.state.gov/travel/tips/...ures_1229.html
Hope that helps
