Tonnage Measurement of Vessels Surveys Up to 24 Metres
Tonnage measurement of vessels up to 24 metres is required by regulation under The Merchant Shipping (Tonnage) Regulations 1997
View Legislation for ships under 24 metres
Craig is an authorised surveyor to carry out Tonnage Measurement of vessels surveys up to 24 metres load line length. This is a legal requirement for Part 1 of the UK Shipping Register which is often necessary if the vessel is to be used as security for a marine mortgage.
Craig Glassonbury Marine is able to provide the yacht tonnage measurement survey service as part of our service, including both offshore and onshore ownership structures, or we are happy to carry out the tonnage survey as purely a stand- alone service.
We find that the tonnage survey often provoke a number of questions from our clients, not least in respect of why it is needed and why it is required for a production vessel but it also can be confused with other surveys, particularly condition surveys.
Our Tonnage Measurement of Vessels Survey Service will measure:
External and internal principal dimensions (length, breadth, depth), cross-referencing against technical documentation, including CE certification and builder-provided Load Line Length (LLL) drawings.
Under British Merchant Shipping Law, tonnage is calculated using the following formula:
Length (m) × Breadth (m) × Depth (m) × 0.16 = Gross Tonnage
The purpose of the tonnage measurement of vessels survey is to ascertain the vessel’s tonnage and principal statistics, in addition to providing independent verification to the registry concerned that the vessel actually exists.
The tonnage survey report provides the registry with the tonnage, dimensions and engine specifications that will appear in the register and on the yacht’s Certificate of Registry.
The tonnage and dimensions of the yacht will determine the application of legislation such as safety and manning requirements, in addition to providing the basis for the calculation of fees or taxes affecting the vessel, such as mooring fees and harbour dues.
A tonnage survey is necessary even for a yacht which may be one of a class or from a production line, (where measurements may have already been taken for a nearly identical vessel).