Class Rules & Guides

These CCS Rules have been developed on the basis of the technical requirements outlines in the IGC Code, which was adopted by IMO MSC by Res. MSC.5(48) and amendments. The authors of the publication aimed it primarily for the vessels carrying liquefied gases and built in full compliance with the Chinese Class Society conditions of classification.

The complete text of the above mentioned IGC Code have been incorporated in the present CCS Rules together with the amendments and some additional paragraphs and interpretations. In case the vessel in question has not been authorized to be issued with the COF, i.e. Certificate of Fitness, all Rules and Flag Administration requirements must be complied with. As declared, the ultimate goal of this document was to provide people with the necessary technical info relating to the classification surveys during the construction and the operation of the ships carrying liquefied gases. The technical requirements that have been included in this rulebook will be of some interest for the crew members and owners of the ships classed with the other Societies, as well.

The Rules contain general provisions, classification and surveys, approval of relevant plans/documents of vessels, additional requirements applicable to the ship hull structures, etc. 

The present CCS Rules apply to the two types of steel floating docks operating fixedly in sheltered waters - cassoon type and pontoon type. In the first type of FDD (floating dry dock) both wing walls and bottom caisson are continuous and inseparable, while in the second type the bottom is formed of non-continuous pontoons while the wing falls are continuous.

The pontoons of the floating dock may be either detachable or, alternatively, they may be permanently attached to the wing walls. China Classification Society will, however, give special consideration to the FDD of other types. These Rules are applicable to the floating dock contracted for construction on or after the date of entry into force of the Rules. This also applies to the floating dock converted from a ship.

The Rules consist of six major chapters covering general provisions, hull structure, stability, maximum submerged draught mark, freeboard and working, machinery installations, electrical installations, fire protection, fire detection, and fire extinction. Apart from the designers and constructors of the floating dry docks. this book will be of great use for everyone willing to get some knowledge of the requirements that generally apply to such structures.