PART 6 Survey and certification of ships
23.Prohibition on United Kingdom ships proceeding to sea without an IBWM Certificate
24.Prohibition on non-United Kingdom ships proceeding to sea without an IBWM Certificate or appropriate documentation
26.Issue of IBWM Certificates by a Certifying Authority in respect of United Kingdom ships
27.Endorsement of IBWM Certificates by a Certifying Authority in respect of United Kingdom ships
29.Extension of periods of validity of IBWM Certificates by a Certifying Authority
30.Extension of periods of validity of IBWM Certificates by a surveyor
33.Issue or endorsement of IBWM Certificates by another Contracting State
34.Issue or endorsement of IBWM Certificates in respect of non-United Kingdom ships