What do you do as Chief Engineer while loading an IMSBC cargo?

flowchart LR
  A["Cargo information and declaration confirmed"] --> B["Group A: moisture below the TML"]
  A --> C["Group B: ventilation, atmosphere, self-heating"]
  B --> D["Loading plan agreed under the BLU Code"]
  C --> D
  D --> E["Deballast in sequence; shear force and bending moment within limits"]
  E --> F["Stop if a limit approaches or a ballast pump fails"]
  F --> G["Holds trimmed, final condition confirmed"]

• Groups: A may liquefy above its transportable moisture limit (TML); B has a chemical hazard (gas, self-heating, oxygen depletion, corrosion); C neither.
• Before loading (§4.2.2, §4.2.3): the shipper’s information and signed declaration: BCSN, group, IMO class, UN number, and for Group A the TML and actual moisture with a certificate.
• Group A: moisture below the TML on a certificate sampled close to loading; any doubt (rain, splatter, a can test) means no loading.
• Group B: schedule ventilation, spaces treated as oxygen-depleted or toxic (gas testing before entry), no hot work where gas is possible, self-heating monitored.
• My own job: deballast in the sequence agreed under the BLU Code plan, rate within the ballast pumps, shear force and bending moment within the loading instrument limits (IACS UR S1, S1A); stop if a limit approaches.
• Completion: holds trimmed, final stress and stability within limits, records complete; within the ISPS security regime (§11).