Management of Change for class and statutory equipment
What is being checked
The inspector is checking whether physical or functional changes to class- or flag-regulated structure, machinery and equipment were identified before implementation, risk assessed, technically approved, documented and verified after completion.
Ready onboard
0/7 completePractice questions
Answer aloud, then open the preparation point.
1Identify one change made during the last twelve months.
Trace its request, technical justification, risk assessment, approvals, implementation, test and document updates.
2How do you distinguish replacement-in-kind from a change?
Verify specification, material, rating, control logic, interfaces and approvals. A similar-looking substitute may still change system performance.
3Who decides whether class approval is required?
Use the company technical process and consult class; shipboard familiarity alone is not approval.
4How are temporary changes prevented from becoming permanent?
Assign an expiry, owner, inspection regime and restoration or permanent-approval decision in the MOC record.
5What must be updated after a control-system modification?
Update approved drawings and software records, operating and emergency procedures, PMS, training, spare strategy and cyber controls as applicable.
Where an observation may arise
A qualifying modification or substitution was completed without the MOC process.
Class- or flag-regulated work lacks required approval.
The assessment ignores interfaces, failure modes, human factors or temporary-operation risk.
Drawings, manuals, PMS, certificates or procedures do not reflect the change.
The changed system entered service without recorded testing and acceptance.
A relevant recent change was not declared in the pre-inspection information.
Master's practical note
Compare recent major work orders and maker substitutions against the MOC register. The failure is often not an obviously large conversion but a replacement whose material, rating or logic was assumed to be equivalent.
Equipment boundary and references
Equipment boundary: Routine maintenance should not be forced through MOC, but the company screening process must identify when replacement, temporary bypass, software, set-point or design changes cross the threshold.
References
- OCIMF SIRE 2.0 Question Library Part 1, Version 1.0, Question 2.5.1
- ISM Code sections 7 and 10
- Applicable classification society rules and flag requirements
- OCIMF TMSA, Management of Change principles
Last reviewed: 2026-09-09
