Approval of Stability
The table below summarises the authorisations for stability approval by ship type however where doubt exists please contact the Stability Unit for further guidance.
VESSEL TYPE |
SIZE |
INTACT |
DAMAGE |
SIZE |
INTACT |
DAMAGE |
|
Passenger Vessel |
any |
a |
a |
|
|
|
|
Oil Tanker |
>100m |
a,b |
a,b |
<100m |
a |
a |
|
Bulk Carrier or Ore Vessel* |
>150m |
a,b |
a,b |
<150m |
a |
a |
|
Single Deck Bulk Vessel* |
>100m |
a,b |
a,b |
<100m |
a |
a |
|
Chemical or Bulk Gas Vessels |
any |
a,b** |
a,b** |
|
|
|
|
Grain Vessel* |
as |
per |
intact/damage |
stability |
approval |
|
|
Single Deck Dry Cargo Vessel* |
>100m |
a,b |
a,b |
<100m |
a |
a |
|
Purpose Built Container Vessels* |
>125m |
a,b |
a,b |
<125m |
a |
a |
|
Mobile Drill Unit Column |
any |
a,b |
a,b |
|
|
|
|
Mobile Offshore support unit |
any |
a,b |
a,b |
|
|
|
|
High Speed Craft |
any |
a |
a |
|
|
|
|
Large Yacht |
>24m |
a |
a |
|
|
|
|
Small Commercial Vessels |
<24m |
c |
c |
|
|
|
|
Fishing Vessels |
>12m |
a |
a |
|
|
|
a = Maritime and Coastguard Agency
b = Classification Societies
c = Certifying Authority
Note:
* Damage stability for these vessels which are in excess of 80m may be determined using the Probabilistic method of determination.
** Only if Memorandum of Understanding between MCA and Classification Society allows