On May 25, the U. S. Coast Guard issued MARSEC Directive 104-6 Maritime Security Directive 104-6 (Rev 2 and 3); Guidelines for 
U.S. Vessels Operating in High Risk Waters. This Directive only applies to 
U.S. flagged vessels subject to the Maritime Transportation Security 
Act (MTSA) on international voyages through or in designated high risk 
waters, and provides additional anti-piracy guidance and mandatory 
measures for these vessels operating in these areas where acts of 
piracy and armed robbery against ships are prevalent. MARSEC Directive 
104-6 (Rev 2 and 3) also includes an annex that provides specific 
direction for vessels operating around the Horn of Africa. MARSEC 
Directives are designated Sensitive Security Information (SSI) and are 
not subject to public release. Details of publication in the Federal Register on May 25.
