Welcome to the United States Coast Guard Port State Information Exchange Help Page The Port State Information eXchange (PSIX) system contains vessel specific information derived from the United States Coast Guard's Marine Information Safety and Law Enforcement System (MISLE). The information contained in PSIX represents a weekly snapshot of Freedom of Information Act (FOIA) data on U.S. flag vessels, foreign vessels operating in U.S. waters, and Coast Guard contacts with those vessels. Information on unclosed cases or cases pending further action is considered privileged information and is precluded from the PSIX system.

PSIX offers three ways to search for infomation on vessels and their contacts with the USCG.

VESSEL SEARCH* PSIX allows you to search for specific vessels using variables such as Vessel Name, Vessel Number, Hull Number, among several others. Results are returned based on these variables and depending on which is selected, multiple returns are possible. Once the returns are visible, you can select the vessel you are interested in, and obtain more detailed information including vessel particulars, doucmentation and US Coast Guard contacts. VESSEL CONTACT SEARCH* PSIX allows you to search for vessels based on when they were contacted by the US Coast Guard using variables such as Vessel Flag, Classificaion Society, Vessel Type Gross Tonnage and Contact dates. Once results are displayed, you can get more information of about the contact by selecting the date of the contact listed under each vessel returned. XML WEB SERVICES* PSIX allows users to obtain vessel information in bulk form using web services provided under the XML Web Services section of the Coast Guard Maritime Information Exchange (CGMIX). Data is returned in either an XML string or .NET dataset for ease in loading data into spreadsheets and database applications. *Click on a search type to get more information on what is returned and how to understand the information.