Classification Statutory Consultancy & Supervision
SHIP CLASS CHARACTERS

Every ship classified to BKI has class character and class notation contained in class certificate. Determination of class character depends on verification of compliance of BKI construction rules which effective upon application date. BKI shall be entitled to add special notation in class certificate. In classification coverage, characteristics of hull, engine and anchor gear are indicated in class character and class notation added to class character.

Determination of class character
Complete examples of determination of class character for hull, engine, anchor gear and cooler installation are as follows :
  Class Character Notation
Hull + A100 Oil Tanker
Machinery + SM OT
Refrigerating Installation SMP  

Class Character
Hull class character is symbolized with the following code :
[Receipt Code] [Hull Requirement] [Anchoring Arrangement]
Receipt Code is divided into :
  means the hull is constructed under supervision and according to other classification rules which recognized by BKI
  means the hull is constructed under supervision and according to BKI Construction Rules, made of material already tested according to BKI rules.
  means other than two matters above.
means vessel constructed with proofed subdivision and damage stability calculation.

Hull Requirement is divided into :
means the vessel's hull is fully in accordance with BKI Construction Rules requirements or other regulation considered to be equivalent
means the vessel's hull is not fully in accordance with or no longer fully fulfills BKI Construction Rules requirements, however the class may be maintained for shorter period and/or with shorter survey interval

Anchoring arrangement is divided into :
means ship whose anchoring arrangement i.e anchor, anchor chain cable and windlass fully comply with requirement of BKI Construction Rules.
means the ship whose anchoring arrangement do not fully or no longer fully comply with requirement of BKI Construction Regulation, but functional safety and seaworthiness condition are fulfilled for the envisaged service.
atau Anchoring arrangement for fishing vessel complying with BKI Rules
Special service vessel provided with anchoring equipment according to BKI Rules (example: High Speed Ship)
means ship without anchor equipment, specially for unmanned barge.

Class character of machinery is symbolized with the following code :
[Receipt Code] [Machinery Requirements]
Machinery Receipt Code is divided into :
  means the machinery is constructed under supervision and according to other classification rules which recognized by BKI
  means the machinery is constructed under supervision and according to BKI Construction Rules, made of material already tested according to BKI rules.
  means other than two matters above.

Machinery requirements are divided into :
means machinery installation and all installation covered by classification comply with the requirement of BKI Construction Rules or other rules considered to be equivalent.
means machinery installation and all installation of non self propelled vessel and other floating units comply with the requirement of BKI Construction Rules or other rules considered to be equivalent.
means machinery installation does not fully comply with or no longer fully comply with requirement of BKI Construction Rules, but functional safety and seaworthiness are fulfilled for the envisaged service.
means machinery installation for non self propelled vessel or other floating unit do not comply with or no longer fully comply with the requirement of BKI Construction Rules, but functional safety and seaworthiness are fulfilled.

Refrigerating installation class character is divided into :
Cargoes Vessel means both in respect of hull and machinery, the cargo refrigerating installation fully comply with requirement of BKI Rules.
means the cargo refrigerating installation does not fully comply with or no longer comply with the requirement of BKI Rules, but functional safety and seaworthiness are fulfilled for envisaged service.
Fishing Vessel means both in respect of hull and machinery, the cargo refrigerating installation of fishing vessel fully comply with requirement of BKI Rules
means the cargo refrigerating installation of fishing vessel does not fully comply with or no longer comply with the requirement of BKI Rules, but functional safety and seaworthiness are fulfilled for envisaged service.

Class Notation
Class Notation constitutes addition to Class Character attached to hull and machinery certificate. Hull's additional notation can be in form of one or more the following notations :
  Ocean This range of service for borderless free ocean trade.
P Restricted Ocean Service This range of service is limited, to the trade for limited ocean service, provided that the nearest distance to port of refuge and offshore distance does not exceed 200 nautical mile, or trade within at Southeast Asian waters, Mediterranean Sea, Black Sea, Caribbean Sea and waters with similar sea condition.
L Coasting Service This range of service is limited, in general, to the trade along the coast, provided that the nearest distance to port of refugee and the offshore distance does not exceed 50 nautical mile, as well as to the trade within enclosed seas, such as Riau Islands waters.
T Shallow Water Service This range of service is limited to the trade in calm seas, bays, harbour or similar waters at which there is no running of heavy seas.
D Inland waterway Service This range of service applies to vessel intended for navigation in inland water only

Types of vessels: such as "Oil Tanker", "General Cargo", "Bulk Carrier", "Passenger Ship", etc.

Material :
  Steel
HTS High Tensile Steel
AL Aluminium
FRP Fiber Reinforced
K Wood

Additional notation of machinery can be in form of one or more notations herein belows :
Otomation :
OT Machinery installation is fitted with equipment for unattended machinery space, so it does not require to be operated and / or maintained for period at least 24 hours.
OT-nh The period during which attendance to and maintenance of equipment is not required, is less than 24 hours, with nh indicating that the machinery space may remain unattended for n hours.
OT-S The machinery installation is operated with engine control room permanently attended (centralized control) and is equipped with a system for remote control of the main propulsion plant from the bridge or arrangement for manoeuvring from engine control room.

Inert Gas System : INERT

See BKI Rules Volume I