Section 1 General

101. General

1. The design and construction of the hull, superstructure and deckhouses for units that are new builds or conversions are to be based on the applicable requirements of design considerations of this guide and not specified in this guide are to be in accordance with the Rules.

2. Design Considerations of this Guide reflects the different structural performance and demands ex- pected for an installation transiting and being positioned at a particular site on a long-term basis compared to that of a vessel engaged in unrestricted seagoing service.

102. Load line

1. A mark designating the maximum allowable draught for loading is to be located in easily visible positions on units as deemed appropriate by the Society or in positions easily distinguishable by the person in charge of liquid transfer operations.

2. The designation of load lines is to comply with the requirements given in the “International Convention on Load Lines, 1996 and Protocol of 1988 relating to the International Convention on Load Lines, 1966”, unless specified otherwise by the relevant flag states or coastal states.

103. Loading manual, stability information and instruction for operation

1. In order to avoid the occurrence of unacceptable stress in unit structures corresponding to all oil and ballast loading conditions and topside modules arrangement and mass and to enable the master or the person-in-charge of loading operations to adjust the loading of cargo and ballast, units are to be provided with loading manuals approved by the Society. Such loading manuals are to at least include the following (1) to (4) items as well as relevant provisions given in Pt 3, Ch 3 of Rules for the Classification of Steel Ships.

(1) The loading conditions on which the design of a unit has been based, including the permissible limits of longitudinal still water bending moments and still water shearing forces.

(2) The calculation results of longitudinal still water bending moments and still water shearing forces corresponding to the loading conditions.

(3) The allowable limits of local loads applied to decks, double bottom construction, etc., in cases

where deemed necessary by the Society.

(4) The limit values of the loads of mooring lines and riser loads.

2. In addition to Par 1 above, a loading computer that is capable of readily computing longitudinal still water bending moments and still water shearing forces working on units corresponding to all oil and ballast loading conditions and the operation manual for such a computer is to be provided on board.

3. The capability of the loading computer specified in Par 2 above to function as specified in the lo- cation where it is installed is to be confirmed.

4. A stability information booklet approved by the Society is to be provided on board in accordance with Pt 1, Annex 1-2 of Rules for the Classification of Steel Ships. This booklet is to in- clude the results of stability evaluations in representative operating conditions and assumed damage conditions as well as the damage condition of any mooring system equipment as necessary.

5. Instructions for the loading and unloading, and transfer and offloading operations of oil and ballast

are to be provided on board. In cases where mooring systems can be isolated, the

isolating and re-mooring are also to be included.

procedures for