The U.S. Department of State's Consular Information Program provides Consular Information Sheets, Travel Warnings, and Public Announcements. Consular Information Sheets exist for all countries and include information on entry requirements, currency regulations, health conditions, areas of instability, crime and security, political disturbances, and the addresses of the U.S. posts in the country. Travel Warnings are issued when the State Department recommends that Americans avoid travel to a certain country. Public Announcements are issued as a means to disseminate information quickly about terrorist threats and other relatively short-term conditions overseas that pose significant risks to the security of American travelers. Free copies of this information are available by calling the Bureau of Consular Affairs at 202-647-5225 or via the fax-on-demand system: 202-647-3000. Consular Information Sheets and Travel Warnings also are available on the Consular Affairs Internet home page: http://travel.state.gov. Consular Affairs Tips for Travelers publication series, which contain information on obtaining passports and planning a safe trip abroad, are on the Internet and hard copies can be purchased from the Superintendent of Documents, U.S. Government Printing Office, telephone: 202-512-1800; fax 202-512-2250. Emergency information concerning Americans traveling abroad may be obtained from the Office of Overseas Citizens Services at (202) 647-5225. For after-hours emergencies, Sundays and holidays, call 202-647-4000. The National Passport Information Center (NPIC) is the U.S. Department of State's single, centralized public contact center for U.S. passport information. Telephone: 1-877-4USA-PPT (1-877-487-2778). Customer service representatives and operators for TDD/TTY are available Monday-Friday, 8:00 a.m. to 8:00 p.m., Eastern Time, excluding federal holidays. Travelers can check the latest health information with the U.S. Centers for Disease Control and Prevention in Atlanta, Georgia. A hotline at 877-FYI-TRIP (877-394-8747) and a web site at http://www.cdc.gov/travel/index.htm give the most recent health advisories, immunization recommendations or requirements, and advice on food and drinking water safety for regions and countries.