46 CFR 97.12-1 - Definition of a bulk solid cargo.
(a) A bulk solid cargo -
(1) Consists of particles, granules, or larger pieces of material generally uniform in composition;
(2) Is not grain; and
(3) Is loaded directly into a vessel's cargo space with no intermediate form of containment.
(b) Additional requirements for bulk solid materials needing special handling are contained in Part 148 of this chapter.