Unit of competency Outline
Date retreived
22/07/2026 11:32 PM AWST
22/07/2026 11:32 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Manage vessel stability
Manage vessel stability
Unit of competency
National Code
MARA004
MARA004
State Code
WH791
WH791
TGA Status
Replaced
Replaced
DTWD Status
Transition (Replaced)
Transition (Replaced)
State Implementation and Classification
Approved Date
04/02/2014
Field of Education
031705 - Marine Craft Operation
Original Release Date
04/02/2014
Nominal Hours
20
Description
This unit involves the skills and knowledge required to manage the dynamic factors affecting the stability of a vessel up to 80 metres.This unit applies to people working in the capacity of Master on a range of vessels up to 80 metres.This unit has links to legislative and certification requirements.
Notes
Elements and Performance Criteria
1 Calculate stability
- 1.1 Vessel stability data book is made available and checked for endorsement
- 1.2 Data is interpreted to determine safety parameters for vessel
- 1.3 Stability is accurately calculated using data extracted from vessel stability data book
- 1.4 Stability calculations are checked to ensure they correlate with data set out in vessel stability book
- 1.5 Miscalculations or unsafe conditions are recognised and recalculated or checked
- 1.6 Calculated stability data is recorded using appropriate units and correct number of significant figures
2 Control vessel stress and stability
- 2.1 Information from vessel stability information is used to determine loading limits and displacement from draft
- 2.2 Vessel weight distribution is managed to maintain stability condition within safe limits at all times and regulatory requirements are complied with under all conditions of loading
- 2.3 Relevant stability information is correctly communicated to others as required
- 2.4 Stability conditions of vessel are managed in adverse weather conditions
- 2.5 Emergencies that may jeopardise vessel stability are recognised and appropriate action is taken
3 Maintain records of stability management
- 3.1 Data and information related to stability management is accurately recorded
- 3.2 Data and information related to stability management is filed and stored according to organisational procedures
No information
No information
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| S5339 | TDMMA1207B | MANAGE STRESS AND DYNAMIC FACTORS AFFECTING A SMALL VESSEL'S STABILITY | Unit of competency |
| WG354 | MARA4002A | Manage vessel stability | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| OCG45 | MARA024 | Manage vessel stability | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| BDU5 | MAR40518 | Certificate IV in Maritime Operations (Marine Engine Driver Grade 1 Near Coastal) | Qualification |
| J716 | MAR40513 | Certificate IV in Maritime Operations (Marine Engine Driver Grade 1 Near Coastal) | Qualification |
| J717 | MAR40613 | Certificate IV in Maritime Operations (Master up to 35 metres Near Coastal) | Qualification |
| BDT9 | MAR40618 | Certificate IV in Maritime Operations (Master up to 35 metres Near Coastal) | Qualification |