Dynamic Positioning Assurance

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Answers to

Company DP Authority

Normative regime

IMCA M 166 Rev 3 · IMCA M 190 Rev 3.2 · IMCA M 191 Rev 1.1 · IMCA M 220 Rev 3.0

Scopes

Verification that the vessel tolerates the failures its class declares — and that the people operating it can be shown to know why.

This family covers both halves of DP capability, because the charterer audits both. The vessel half is sequential: the FMEA establishes the worst-case failure, the proving trials demonstrate it, the operational state documents derive from both, and the annual programme keeps the demonstration current. A scope bought out of that order cannot be defended, and we say so before the campaign rather than during it. The people half — competence assessment and CPD — answers to the same instruments and to the same officer, because an ASOG nobody on the bridge can explain is a document, not a control.

The scopes

11 scopes in this family

DP FMEA IMCA M 166 Rev 3 Which single failures the vessel tolerates in its declared DP class. DP Annual Trials IMCA M 190 Rev 3.2 — IMCA M 191 Rev 1.1 for MODUs Whether the vessel still holds the capability it demonstrated. 5-Yearly DP Trials IMCA M 166 Rev 3 §3.4, conducted per IMCA M 190 Rev 3.2 Whether the five-year cycle closes with the capability intact. DP Acceptance Test IMCA M 166 Rev 3 · IMO MSC/Circ. 645 · the build or upgrade specification Whether the DP system delivered is the DP system specified. CAM / TAM / ASOG IMCA M 220 Rev 3.0 Which configuration the vessel operates in, and when it must stop. DP Gap Analysis IMCA M 166 Rev 3 §2.6 · §2.7 for FMEA; M 190 §5.10.1 for trials; M 220 Rev 3.0 for operational state documents Whether the DP documentation you hold is fit to rely on, and what it does not cover. DP Incident Investigation IMCA M 117 Rev 3.3 Appendix H · IMCA DP Station Keeping Event Reporting Scheme What actually caused the event, and whether the actions taken will stop it recurring. DP Assurance Charterer assurance regime · IMCA good practice Whether the organisation behind the vessel can hold the standard. Company DP Authority Support IMCA M 117 Rev 3.3 · IMCA M 190 Rev 3.2 · charterer assurance regime Whether the DP Authority function holds together between campaigns, not only during them. DP Competence Assessment IMCA M 117 Rev 3.3 · MTS PDDP2 Where each key DP person stands against the standard their rank requires. Continuous Professional Development IMCA M 117 Rev 3.3 · NORMAM 101 / DPC Ar 1.24.3 Whether the people operating the vessel can be shown to be competent, rather than declared to be.

Next step

Dynamic Positioning Assurance — which scope fits your vessel?

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