Establishing what goes the bulk shipper’s declaration can take a laboratory, a battery of tests, and judgement across multiple separate regulatory codes. The declaration (in Australia, AMSA form 268) sits under the SOLAS Convention, and on a single page it draws together the IMSBC Code classification, the chemical hazard from the IMDG Code, and the classification relating to MARPOL Annex V. Underpinning these regulations is the UN GHS. The form is simple; the classification behind it is often not. Some cargoes are straightforward; others require an extensive testing and assessment process.