DRAFT, needs technical review. Not for publication. The title is our own wording, not the official Paris MoU text.
PSC deficiency code 01117: International Oil Pollution Prevention Certificate validity
| Category | Statutory certificates (MARPOL Annex I) |
| Related certificate | International Oil Pollution Prevention (IOPP) |
| Main references | MARPOL Annex I Regs 6, 7 and 10 (surveys, certification, validity) |
| Typical action codes | 17 (rectify before departure), 30 (detainable) if serious |
| Commonly detainable? | Can be, depending on severity (no statistics claimed) |
What PSC officers look for
- IOPP expired or survey overdue
- Form B supplement not matching equipment
- Equipment list differs from onboard layout
- Survey endorsement missing after modification
- Electronic IOPP on board not meeting FAL.5/Circ.39/Rev.2 guidelines where e-certificates are used
Typical root causes
- Equipment change after survey not reported
- Annual survey slippage
- Confusion between class and flag endorsements
- Digital certificate not downloaded to ship
Corrective action (example)
Complete survey; update Form B; align equipment with certificate; obtain endorsed IOPP.
Preventive action (example)
Trigger survey request when OWS or tanks modified; joint class-flag review.
Evidence to attach for close-out
- IOPP and Form B
- Survey report
- Equipment photos
- Class notification
Related
Generate a close-out report for this finding · Download the CAP template
Official code list: Paris MoU, List of Deficiency Codes (1 July 2026). Action codes: Paris MoU, Inspection outcome. Reviewed by: _pending_ · Review date: _pending_ This page is general guidance, not legal, flag or class advice. Always follow the PSC officer's instructions and your flag and class requirements.