(a) Waterborne commercial cargo and vessel movements originating in or departing from the special purpose area may be attributed as waterborne commercial cargo or vessel movements originating in or departing from the Port of Beaumont Navigation District of Jefferson County, Texas, for the purpose of reporting to the United States Army Corps of Engineers under applicable federal law.
(b) Waterborne commercial cargo and vessel movements originating in or departing from the territory of the district not including the special purpose area may be attributed as waterborne commercial cargo or vessel movements originating in or departing from the district for the purpose of reporting to the United States Army Corps of Engineers under applicable federal law.