The Codes of Practice require all coded vessels comply with certain stability requirements. These criteria and standards will depend on the vessel design, the specific Code of Practice, and the nature of your boat’s operations.

The YDSA Certifying Authority will review the evidence of stability to satisfy itself the relevant stability criteria have been met. This evidence generally takes one of two forms: a Stability Information Booklet or a Simplified Assessment of Stability.

Stability Information Booklet

These are generally required in the following situations:

  • Vessels operating in Area Category 0 or 1
  • Vessels carrying 16 or more persons
  • Vessels carrying cargo greater than 1000kg
  • Vessels fitted with a lifting device
  • Vessels engaged in towing
  • Pilot boats
  • Sailing Catamarans

There are other situations where a Stability Information Booklet is required by the Code of Practice. It is important you discuss your Stability requirements with your Nominated Coding Surveyor.

Stability Information Booklets are large technical documents that take time to examine so we can be satisfied the vessel meets the relevant stability requirements. If stability documentation is not presented in an approved format, the checking of the booklets will take longer and additional fees may be charged.

Details of the stability fees due to the YDSA Certifying Authority are listed in the Fees section below and will be either: Intact Stability, Damaged Stability or Sailing Multihulls.

If you do not already have a Stability Information Booklet but require one, talk to your Nominated Coding Surveyor or take a look at our Find a Designer option to see who can help.

Simplified Assessment of Stability

If the vessel does not require a Stability Information Booklet, it will require some form of Simplified Assessment of Stability. What is required depends on the vessel design, the specific Code of Practice, and the nature of your boat’s operations. This can usually be overseen by your Nominated Coding Surveyor but may require additional information or documentation, so it is important you discuss your stability requirements with them.

Details of the stability fees due to the YDSA Certifying Authority are listed in the Fees section below and under Issue of Stability Category.

Modifications and Repairs to the Vessel

Any changes that alter the vessel from the original design may impact on the stability of the vessel. For example, the addition of a mast-furled main sail or a radar antenna may cause the vertical centre of gravity to be at a higher level than that intended by the designer which will impact the stability of the vessel.

The YDSA Certifying Authority must be notified of any repairs or modifications that change the vessel from the original design so we can decide what action, if any, is required.

Application fee for the issue of a compliance certificate (1st year)
(Fees in this table are VAT Exempt)
Price (£ GBP)
Vessels under 15m LOA and not in the below criteria
140.00
Vessels between 15m and 19m in length
265.00
Vessels under 19m in length operating in Categories 0 and 1
265.00
Vessels under 19m in length carrying 16 or more persons, over 1000 Kg cargo, or engaged in lifting, towing or Pilot Boat operations
265.00
All vessels 19m in length and over
380.00
Annual Renewal fee for the issue of a compliance certificate (years 2 to 5)
(Fees in this table are VAT Exempt)
Price (£ GBP)
Annual renewal fee for vessels <15m not requiring annual examination by the Certifying Authority
85.00
Annual renewal fee for vessels between 15m and 19m in length not requiring annual examination by the Certifying Authority
170.00
Vessels under 19m in length requiring an annual examination by the Certifying Authority
170.00
All vessels 19m in length and over
190.00
MLC Compliance Fees
(Fees in this table are VAT Exempt)
Price (£ GBP)
MLC (Maritime Labour Convention 2006) Compliance
95.00
Vessel Stability Fees
(VAT should be added to fees in this table unless otherwise stated)
Price (£ GBP)
Issue of Stability Category (vessels not requiring stability books) (this fee is VAT Exempt)
75.00
Intact Stability (checking of stability books)
from 515.00
Damaged Stability (checking of stability books)
from 515.00
Sailing Multihulls (checking of stability books)
from 465.00
Additional Fees
(VAT should be added to fees in this table)
Price (£ GBP)
YDSA Administration fee (e.g. issue of duplicate certificates, 3 month extension)
from 55.00
Retrieval of files from archive (typically vessels that have not been coded for 2+ years)
from 25.00

Compliance Examination - Surveyor's Fees

The fees for the Compliance Examination are negotiated with and paid directly to the Coding Surveyor. The quoted fee will be on the basis that the vessel is presented for examination already compliant with the Code requirements. An additional charge may be made for a return visit or providing assistance with stability information.

New Applications for 5 Year Examinations

For vessels new to us use this link for payments (remember to send us your completed SCV1):

Annual Renewals

For vessels due for their annual renewal (you may need your invoice/request for payment):

5 Year Cycle Renewals

For vessels due their 5 year renewal use this link for payments (remember to send us your completed SCV1):

Administration Fees

For various administration fees including retrieval and extension fees:

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