DRAFT, needs technical review. Not for publication. The title is our own wording, not the official Paris MoU text.
PSC deficiency code 18301: Onboard noise, vibration and workplace ambient factors
| Category | Maritime Labour Convention (Title 3) |
| Related certificate | Maritime Labour Certificate |
| Main references | MLC Reg. 4.3, Standard A4.3 and Guideline B4.3 (occupational safety: noise and vibration); Reg. 3.1 and Standard A3.1 (accommodation); IMO res. MSC.337(91) (noise levels) |
| 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
- Excessive noise in accommodation without mitigation
- Hearing protection not available where required
- Vibration from machinery affecting rest spaces
- No documented risk assessment for high-noise areas
- Crew complaints not investigated
Typical root causes
- Machinery mounting degraded
- Acoustic insulation not maintained
- PPE not included in joiner issue
- No shore follow-up on crew feedback
Corrective action (example)
Measure noise where practicable; implement engineering or administrative controls; provide PPE and training; document assessment.
Preventive action (example)
Include noise in refit spec; periodic subjective crew survey.
Evidence to attach for close-out
- Risk assessment
- Noise survey if conducted
- PPE issue record
- Repair work order
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.