High consequence area
High consequence area means:
(1) A commercially navigable waterway, which means a waterway where a substantial likelihood of commercial navigation exists;
(2) A high population area, which means an urbanized area, as defined and delineated by the Census Bureau, that contains 50,000 or more people and has a population density of at least 1,000 people per square mile;
(3) An other populated area, which means a place, as defined and delineated by the Census Bureau, that contains a concentrated population, such as an incorporated or unincorporated city, town, village, or other designated residential or commercial area;
(4) An unusually sensitive area, as defined in ยง 195.6.