RULES FOR CENTRALIZED CARGO MONITORING AND CONTROL SYSTEMS
CONTENTS
Chapter 1 GENERAL
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1.1 General
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1.2 System Design
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Chapter 2 SURVEYS
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2.1 General
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2.2 Registration Surveys
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2.3 Registration Maintenance Surveys
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Chapter 3 CENTRALIZED CARGO MONITORING AND CONTROL SYSTEMS
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3.1 General
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3.2 Cargo Control Room Installations
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RULES FOR CENTRALIZED CARGO MONITORING AND CONTROL SYSTEMS
Chapter 1 GENERAL
1.1 General
1.1.1 Scope
1 The Rules for Centralized Cargo Monitoring and Control Systems (hereinafter referred to as “the Rules”) apply
to the survey and construction of the centralized cargo monitoring and control systems of ships carrying oil,
dangerous chemicals and liquefied gases in bulk classed with NIPPON KAIJI KYOKAI (hereinafter referred to as
“the Society”) and intended to be registered with those Installation Characters found in Chapter 3 of the
Regulations for the Classification and Registry of Ships.
2 The relevant requirements given in the Rules for the Survey and Construction of Steel Ships are also to apply
to any equipment and systems used for centralized cargo monitoring and control systems in addition to those
specified in the Rules.
1.1.2 Equivalency
Centralized cargo monitoring and control systems which do not fully comply with the requirements of the Rules
may be accepted provided that they are deemed by the Society to be equivalent to those specified in the Rules.
1.1.3 Centralized Cargo Monitoring and Control Systems with Novel Design Features
In the case of centralized cargo monitoring and control systems with novel design features, the Society may
impose appropriate requirements of the Rules to the extent that they are practically applicable with additional
requirements made on design and test procedures other than those specified in the Rules.
1.1.4 Terminology
The terms in the Rules are defined as follows:
(1) “Cargo control room” means those locations in which the safe loading and unloading of cargoes, ballasting and
deballasting, etc. as well as the state of the ship is centrally monitored and remotely controlled.
(2) “Centralized cargo monitoring and control system” means those cargo monitoring and control systems which are
to monitor state of cargo tanks, devices related to loading, ballast tanks, devices and equipment related to
ballasting and deballasting, and all necessary remote controls operated by personnel evaluating such
information.
(3) The term “CCM-ship” means those ships which are to be registered as a ship in which centralized cargo
monitoring and control systems in accordance with those requirements given in Chapter 3 in addition to those
requirements given in the Rules for the Survey and Construction of Steel Ships are installed.
1.1.5 Installations Characters
Character “CCM” is given in the Register for any centralized cargo monitoring and control systems of
CCM-ships.
1.2 System Design
System design is to comply with the following requirements in addition to those given in 18.2, Part D of the
Rules for the Survey and Construction of Steel Ships.
1.2.1 System Design*
(1) Control systems, alarm systems and safety systems are to be independent of each other or have redundancy as
far as practicable. In addition, they are to be designed so that one fault does not result in any other faults as far as
practicable, and the extent of any damage is kept to a minimum.
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2022 Rules for Centralized Cargo Monitoring and Control Systems (Chapter 1)
(2) Means are to be provided for safety systems to investigate the cause of the action of any safety systems.
Furthermore, the system that executes the stoppage of the equipment and the devices of such safety systems are
to be provided with self-monitoring functions and are to be independent other systems.
1.2.2 Supply of Power*
1 Supply of electrical power
The supply of electrical power is to be in accordance with the following (1) to (4):
(1) Centralized cargo monitoring and control systems are to be supplied from main sources of electric power and
reserve sources of electric power by two sets of independent circuits; moreover, those circuits are to be separated
throughout their length as widely as practicable.
(2) In cases where the supply of electric power has failed due to a failure of such main sources of electric power or
short circuits, reserve sources of electric power are to be automatically supplied to centralized cargo monitoring
and control systems.
(3) In the case of a failure of the supply of electric power failure as specified in (2) above occurs, visible and audible
alarms are to be activated in cargo control rooms.
(4) In case of recovery from a electric power supply stoppage, centralized cargo monitoring and control systems are
to be designed for speedy automatic or manual recovery in accordance with a planned process.
2 Supply of oil pressure
The supply of control oil pressure is to be in accordance with the following (1) and (2):
(1) Two or more sets of oil pressure pumps for control of the valves for piping systems are to be provided and they
are to be capable of being remotely controlled from cargo control rooms.
(2) In cases where one of the pumps specified in (1) above fails, stand-by pump(s) are to start automatically.
1.2.3 Environmental Conditions
The systems covered under the Rules are to be capable of withstanding the environmental conditions of the
place and of those system types given in 1.3.1, Part D of the Rules for the Survey and Construction of Steel Ships
and 1.1.7, Part H of the Rules for the Survey and Construction of Steel Ships.
1.2.4 Monitoring Systems*
Monitoring system design is to comply with the following requirements for indication functions and alarm
functions in addition to requirements of alarm functions specified in 18.2.5-1, Part D of the Rules for the Survey and
Construction of Steel Ships.
1 Indication function
(1) The state of operating equipment and devices, the open/close condition of piping system valves (including the
open angle if indicated), the state of tanks (such as cargo tanks, ballast tanks, etc.) that influence ship draft and
ship conditions such as trim and heel (e.g. liquid levels and in cases where required temperature and pressure
levels) and alarm conditions are to be indicated graphically.
(2) Back-up devices are to be provided for indication devices.
(3) In cases where safety systems and alarm systems activate, the indication of such conditions is to be given
priority.
2 Alarm function
(1) A self-monitoring function is to be provided.
(2) Alarm sensor maintenance checks are to be carried out without interfering with any loading unless this is
considered impracticable by the Society.
(3) The activation of visible and audible alarms is to be maintained until confirmation can be made by an operator in
order to detect any transitional and abnormal conditions even in the case of natural recovery.
(4) Audible alarms for centralized cargo monitoring and control systems are to be clearly distinguishable from other
audible alarms in cargo control rooms.
1.2.5 Control Systems
The construction and function of control systems are to comply with the following (1) and (2):
(1) Control devices are to be provided with suitable interlocking arrangements in order to prevent any damage to
machinery and equipment due to anticipated malfunctions and mal-operation.
(2) Any valves that need to be operated after loading has begun, such as the inlet valves of tanks and the outlet
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2022 Rules for Centralized Cargo Monitoring and Control Systems (Chapter 1)
valves of pumps, etc., are to be remotely controlled valves.
1.2.6 Safety Systems*
The construction and function of safety systems are to comply with the following (1) and (2):
(1) Safety systems are to be, as far as practicable, provided independently of control systems and alarm systems.
(2) The alarm functions of the monitoring systems specified in 1.2.4 are to operate in cases where safety systems are
put into action.
1.2.7 Computers and Computerized Systems*
The construction of monitoring systems, control systems and safety systems in which computers are used is to
provide back-up means for such computers in addition to those specified in 18.2.7, Part D of the Rules for the
Survey and Construction of Steel Ships.
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2022 Rules for Centralized Cargo Monitoring and Control Systems (Chapter 1)
Chapter 2 SURVEYS
2.1 General
2.1.1 Kinds of Surveys
Centralized cargo monitoring and control systems registered or intended to be registered are to be subjected to
the following surveys:
(1) Surveys for the registration of centralized cargo monitoring and control systems (hereinafter referred to as
“Registration Surveys”)
(2) Surveys for maintaining the registration of centralized cargo monitoring and control systems (hereinafter
referred to as “Registration Maintenance Surveys”), which are:
(a) Special Surveys
(b) Annual Surveys
(c) Occasional Surveys
(d) Unscheduled Surveys
2.1.2 Survey Intervals*
Surveys are to be carried out in accordance with the following requirements given in (1) and (2):
(1) Registration Surveys are to be carried out at the time of application for registration.
(2) Registration Maintenance Surveys are to be carried out at those times as prescribed in (a) to (d) below.
(a) Special Surveys are to be carried out at those intervals specified in 1.1.3-1(3), Part B of the Rules for the
Survey and Construction of Steel Ships.
(b) Annual Surveys are to be carried out at those intervals specified in 1.1.3-1(1), Part B of the Rules for the
Survey and Construction of Steel Ships.
(c) Occasional Surveys: at a time falling on any of i) to iii) mentioned below, independently of Special Surveys
and Annual Surveys. To implement the survey, in lieu of the traditional ordinary surveys where a surveyor
is in attendance, the Society may approve survey methods which it considers to be appropriate.
i) In cases where any main parts of systems have been damaged, repaired or renewed.
ii) In cases where any systems are modified or altered.
iii) In cases where considered necessary by the Society.
(d) The classed ships may be subject to Unscheduled Surveys when the confirmation of the status of systems
by survey is deemed necessary in cases where the Society considers the systems to be subject to 1.4-3 of
the CONDITIONS OF SERVICE FOR CLASSIFICATION OF SHIPS AND REGISTRATION OF
INSTALLATIONS.
2.1.3 Special Surveys and Annual Surveys Carried Out in Advance, etc.
1 Surveys carried out in advance
The requirements for Special Surveys and Annual Surveys carried out in advance are to be in accordance with
those provisions specified in 1.1.4, Part B of the Rules for the Survey and Construction of Steel Ships.
2 Postponement of Special Surveys
The requirements for the postponement of Special Surveys are to be in accordance with those provisions specified
in 1.1.5(1) or 1.1.5(2), Part B of the Rules for the Survey and Construction of Steel Ships.
2.1.4 Preparation for Surveys and Others
1 All such preparations required for surveys to be carried out as well as any preparations which may be required
by Surveyors as necessary in accordance with the requirements given in the Rules are to be made by survey
applicants. Such preparations are to include provisions for easy and safe access, necessary facilities and necessary
records for survey execution. Any inspection, measuring and test equipment, which Surveyors rely on to make
decisions affecting classification are to be individually identified and calibrated to standards deemed appropriate by
the Society. However, Surveyors may accept simple measuring equipment (e.g. rulers, measuring tapes, weld
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2022 Rules for Centralized Cargo Monitoring and Control Systems (Chapter 2)
