Stability approval has been delegated to selected Classification Societies and Certifying Authorities for some ship types.  The table summarises the authorisations for stability approval by ship type, however, where doubt exists please contact the Stability Unit for further guidance.

Provides guidance on the stability information required to enable the master to assess the stability of a vessel in any condition of loading.

All vessels, other than those vessels deemed unsuitable for carriage of the booklet by the Certifying Authority (i.e. vessels with no cabin or shelter), are required to carry the relevant copy of the MCA Stability Guidance Booklet (Motor or Sail). Where a booklet is not carried on board a copy is to be made available to crew ashore. These booklets are available free of charge from the MCA or Certifying Authority.