The NBIC has been receiving ballast water reporting forms from commercial vessels that arrive to U.S. ports from overseas since July 1, 1999. Federal law (
Note: All data available in graphs and tables extend through the last complete month and are refreshed monthly. As ballast water management reports may be amended, corrected or changed during quality control processes, particularly within the 20 days from arrival date for the last complete month, this will result in updates that will register when the data are next refreshed. All data are subject to change and use of any of the NBIC data implies agreement with the NBIC Data Use Agreement policy. Cite our data.