PART II RULES FOR THE CONSTRUCTION AND CLASSIFICATION …

REGISTRO BRASILEIRO Rules for the Construction and Classification BWMS - Title 110

DE NAVIOS E AERONAVES of Vessels Identified by their Missions PIPING – Section 6

RGMM20EN Ballast Water Management Systems CHAPTER – Index

RULES 2020 6-1

PART II RULES FOR THE CONSTRUCTION

AND CLASSIFICATION OF VESSELS IDENTIFIED

BY THEIR MISSIONS

TITLE 110 BALLAST WATER MANAGEMENT

SYSTEMS

SECTION 6 PIPING

CHAPTERS

A APPROACH

B DOCUMENTS, REGULATIONS AND

STANDARDS

C MATERIALS

D INSTALLATION

E BALLAST EXCHANGE AND PERFORMANCE

T SURVEYS AND CERTIFICATION



RGMM20EN Ballast Water Management Systems CHAPTER – Index

RULES 2020 6-2



RGMM20EN Ballast Water Management Systems CHAPTER – Topics

RULES 2020 6-3

CONTENTS

CONTENTS .................................................................... 3

INTRODUCTION ........................................................... 5

Approval of ballast water management systems .......... 5 DPC – BRAZILIAN MARITIME AUTHORITY ........... 6

CHAPTER A ................................................................... 7

APPROACH .................................................................... 7

A1. APPLICATION ................................................. 7 100. Application..................................................... 7 200. Definitions ..................................................... 7

CHAPTER B ................................................................... 8

DOCUMENTS, REGULATIONS AND STANDARDS . 8

B1. DOCUMENTATION TO THE RBNA ............... 8 100. Ballast water exchange at sea ......................... 8 200. References...................................................... 8

B2. STANDARDS AND UNITS .............................. 8 100. Standards ....................................................... 8 200. Units .............................................................. 8

CHAPTER C ................................................................... 9

MATERIALS .................................................................. 9

C1. MATERIALS .................................................... 9

CHAPTER D ................................................................. 10

INSTALLATION .......................................................... 10

D1. INSTALLATION ............................................ 10 100. General requirements ................................... 10 200. Operation involving generation of dangerous

gas 10 300. Sampling system ........................................... 10 400. Ventilation ................................................... 11 500. Special requirements .................................... 11 600. Automation................................................... 11

D2. ADDITIONAL REQUIREMENTS FOR

TANKERS .................................................................. 12 100. General requirements for BWMS systems in

tankers 12 200. Additional requirements for tankers .............. 12

CHAPTER E ................................................................. 14

BALLAST EXCHANGE AND PERFORMANCE ....... 14

E1. GENERAL PRINCIPLES ................................ 14 100. Regulation D-1 Ballast Water Exchange

Standard .................................................................. 14 200. Regulation D-2 Ballast Water Performance

Standard .................................................................. 14 300. Regulation D-3 Approval requirements for

Ballast Water Management systems ......................... 14 400. Regulation D-4 Prototype Ballast Water

Treatment Technologies ........................................... 14

CHAPTER T ................................................................. 15

SURVEYS AND CERTIFICATION ............................ 15

T1. SURVEYS AND CERTIFICATION ................ 15

100. Surveys ........................................................ 15 200. Issuance or Endorsement of a Certificate ...... 15



RGMM20EN Ballast Water Management Systems CHAPTER – Topics

RULES 2020 6-4



RGMM20EN Ballast Water Management Systems CHAPTER – Introduction

RULES 2020 6-5

INTRODUCTION

Since the introduction of steel-hulled vessels, water has been

used as ballast to stabilize vessels at sea. Ballast water is

pumped in to maintain safe operating conditions throughout a voyage. This practice reduces stress on the hull, provides

transverse stability, improves propulsion and

manoeuvrability, and compensates for weight changes in

various cargo load levels and due to fuel and water

consumption.

While ballast water is essential for safe and efficient modern

shipping operations, it may pose serious ecological,

economic and health problems due to the multitude of

marine species carried in ships’ ballast water. These include

bacteria, microbes, small invertebrates, eggs, cysts and

larvae of various species. The transferred species may survive to establish a reproductive population in the host

environment, becoming invasive, out-competing native

species and multiplying into pest proportions.

The problem of invasive species in ships’ ballast water is

largely due to the expanded trade and traffic volume over

the last few decades and, since the volumes of seaborne

trade continue to increase, the problem may not yet have

reached its peak yet. The effects in many areas of the world

have been devastating. Quantitative data show that the rate

of bio-invasions is continuing to increase at an alarming rate and new areas are being invaded all the time.

Preventing the transfer of invasive species and coordinating

a timely and effective response to invasions requires

cooperation and collaboration among governments,

economic sectors, non-governmental organizations and

international treaty organizations; the UN Convention on the

Law of the Sea (Article 196) provides the global framework

by requiring States to work together to prevent, reduce and

control pollution of the marine environment including the

intentional or accidental introduction of species, alien or new, to a particular part of the marine environment, which

may cause significant and harmful changes thereto.

IMO has been at the front of the international effort by

taking the lead in addressing the transfer of invasive aquatic

species (IAS) through shipping. In 1991 the MEPC adopted

the International Guidelines for preventing the introduction

of unwanted aquatic organisms and pathogens from ships'

ballast water and sediment discharges (resolution

MEPC.50(31)); while the United Nations Conference on

Environment and Development (UNCED), held in Rio de

Janeiro in 1992, recognized the issue as a major international concern.

In November 1993, the IMO Assembly adopted resolution

A.774(18) based on the 1991 Guidelines, requesting the

MEPC and the MSC to keep the Guidelines under review

with a view to developing internationally applicable,

legally-binding provisions. While continuing its work

towards the development of an international treaty, the

Organization adopted, in November 1997, resolution

A.868(20) - Guidelines for the control and management of

ships' ballast water to minimize the transfer of harmful

aquatic organisms and pathogens, inviting its Member

States to use these new guidelines when addressing the issue

of IAS.

After more than 14 years of complex negotiations between

IMO Member States, the International Convention for the

Control and Management of Ships' Ballast Water and

Sediments (BWM Convention) was adopted by consensus at

a Diplomatic Conference held at IMO Headquarters in

London on 13 February 2004. In his opening address to the

Conference the Secretary-General of IMO stated that the

new Convention would represent a significant step towards

protecting the marine environment for this and future

generations. “Our duty to our children and their children

cannot be over-stated. I am sure we would all wish them to inherit a world with clean, productive, safe and secure seas –

and the outcome of this Conference, by staving off an

increasingly serious threat, will be essential to ensuring this

is so”.

The Convention requires all ships to implement a ballast

water management plan. All ships have to carry a ballast

water record book and are required to carry out ballast water

management procedures to a given standard. Parties to the

Convention are given the option to take additional measures

which are subject to criteria set out in the Convention and to IMO guidelines.

The MEPC, at its fifty-first session in April 2004, approved

a programme for the development of guidelines and

procedures for uniform implementation of the BWM

Convention, listed in Conference resolution, including

additional guidance required but not listed in the resolution.

The programme was further expanded at the fifty-third

session of the MEPC in July 2005 to develop and adopt 14

sets of Guidelines, the last one being adopted by resolution

MEPC.173(58) in October 2008.

Approval of ballast water management systems

During the Convention development process, considerable

efforts were made to formulate appropriate standards for

ballast water management. They are the ballast water

exchange standard and the ballast water performance

standard. Ships performing ballast water exchange shall do

so with an efficiency of 95 per cent volumetric exchange of

ballast water and ships using a ballast water management

system (BWMS) shall meet a performance standard based

on agreed numbers of organisms per unit of volume.

Regulation D-3 of the BWM Convention requires that

ballast water management systems used to comply with the

Convention must be approved by the Administration taking

into account the Guidelines for approval of ballast water

management systems (G8). The Guidelines (G8) have been

revised in 2016 and converted into a mandatory Code for

approval of ballast water management systems (BWMS

Code), which was adopted by MEPC 72 (April 2018) and

enters into force in October 2019.

http://www.imo.org/About/Conventions/ListOfConventions/Pages/International-Convention-for-the-Control-and-Management-of-Ships%27-Ballast-Water-and-Sediments-%28BWM%29.aspx



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RGMM20EN Ballast Water Management Systems CHAPTER – Introduction

RULES 2020 6-6

DPC – BRAZILIAN MARITIME AUTHORITY

In tune with the international efforts, DPC has developed in

2005 the Standard NORMAM 20, “Brazilian Maritime Authority Standards for Ship Ballast Water Management

Systems” in accordance with Imo Resolution A.868(20) and

the IMO BWM Convention.

In Brazil, the presence of exotic species was perceived

sporadically along the coast. However, with the appearance

of the golden mussel (Limnoperna fortunei), there was a

drastic change in the way the problem was treated in the

country. This freshwater mollusk, originating in Southeast

Asia, was introduced through Ballast Water in Argentina, in

1991. In 1998, it was noted its presence at the mouth of the

Jacuí River, near Porto Alegre. Nowadays, its occurrence is verified, in great proportions, in the rivers Guaíba, Paraguay

and Paraná.

The presence of the golden mussel, due to its great capacity

for adaptation and reproduction, has caused damages due to

the agglomerations in the pipes of admissions and

discharges of water and its consequent blockade, as well as

the deterioration and the early obstruction of filters and grids

due to the large amount of incrustations generated. In

addition, when its mortality occurs, the mussel brings

problems to the Water Treatment Stations, due to the large amount of individuals to be disposed and to the bad smell,

increasing the costs with the maintenance of the same, given

the necessity cleaning and changing the filters more

frequently.

The issue involves, in principle, two basic points: the health

risk and the pollution of the aquatic environment caused by

vessels when they use Ballast Water for the accomplishment

of its objectives and purposes. In view of this, the Maritime

Authority and the sanitary and environmental authorities, in

relation to their specific competences established by Law, have worked to present possible solutions to minimize

damages caused to the environment due to the capture,

discharge or exchange of the Ballast Water in places deemed

improper or unauthorized.

The DPC NORMAM 20, is Standard applies to all vessels,

national or foreign, with Ballast Water tanks / basins, which

use Brazilian ports and terminals, which is in full validity

since 15th October 2005, and the most recent amendment has

been the 2014 edition.

According to IMO Assembly Resolution A.868 (20) of 1997 and the International Convention on the Control and

Management of Ships' Ballast Water and Sediments,

adopted in 2004, the prevention of pollution by vessels in

AJB (Brazilian jurisdictional waters), with regard to the

management of Ballast Water, is based on the obligation of

the oceanic exchange of Ballast Water.



RGMM20EN Ballast Water Management Systems CHAPTER – A

RULES 2020 6-7

CHAPTER A

APPROACH

CHAPTER CONTENTS

A1. APPLICATION

A1. APPLICATION

100. Application

101. In addition to the requirements contained in BWM

Convention (2004), the requirements of the present Title 110

are to be applied to the installation of Ballast Water

Management Systems. The present Title 110 contains

recommendations for the design and construction of ships to

assist compliance with Regulation D-1 (Ballast Water

Exchange Standard) of the International Convention for the Control and Management of Ships' Ballast Water and

Sediments, henceforth designated as the Convention.

102. This Title is to be uniformly implemented by RBNA

for BWMS:

a. where an application for approval for the plans of

BWMS is made on or after 1 January 2017; or

b. which is installed in ships contracted for construction on

or after 1 January 2017.

103. The requirements herein should be applied without

compromising the ship' s safety and operational efficiency

and taking into account the design of ship types, which may

have special safety considerations for example container

ships and bulk carriers.

200. Definitions

201. For the purposes of these Guidelines, the definitions in

the Convention apply and:

a. “Administration” means the IMO – International

Maritime Administration.

b. “DPC” means the Diretoria de Portos e Costas,

Brazilian Maritime Authority.

c. "Ballast Water Tank" - means any tank, hold or space

used for the carriage of ballast water as defined in in the

Convention.

d. "Sequential Method" - means a process by which a

ballast tank intended for the carriage of ballast water is first emptied and then re-filled with replacement ballast

water to achieve at least a 95 per cent volumetric

exchange.

e. "Flow-through Method" - means a process by which the

replacement ballast water is pumped into a ballast tank

intended for the carriage of ballast water, allowing water

to flow through overflow or other arrangements.

f. "Dilution Method" - means a process by which replacement ballast water is filled through the top of the

ballast tank intended for the carriage of ballast water

with simultaneous discharge from the bottom at the same

flow rate and maintaining a constant level in the tank

throughout the ballast exchange system.

g. “Ballast Water Management System” (hereinafter

referred to as ‘BWMS’) means any system which

processes ballast water such that it meets or exceeds the

Ballast Water Performance Standard in Regulation D-2

of the BWM Convention. The BWMS includes ballast

water management equipment, all associated control equipment, monitoring equipment and sampling

facilities.

h. “Dangerous gas” means any gas which may develop an

explosive and/or toxic atmosphere being hazardous to

the crew and/or the ship, e.g. hydrogen (H2),

hydrocarbon gas, ozone (O3), chlorine (Cl

2) and chlorine

dioxide (ClO2), etc.

i. “Hazardous area” means an area in which an explosive

gas atmosphere is or may be expected to be present, in quantities such as to require special precautions for the

construction, installation and use of equipment. When a

gas atmosphere is present, the following hazards may

also be present: toxicity, asphyxiation, corrosivity and

reactivity.

j. “Dangerous liquid” means any liquid that is identified as

hazardous in the Material Safety Data Sheet or other

documentation relating to this liquid.

https://vp.imo.org/Customer/Subscriptions/IMOVEGA/MemberPages/IMODocument.aspx?docId=BWM04SECABB

https://vp.imo.org/Customer/Subscriptions/IMOVEGA/MemberPages/IMODocument.aspx?docId=BWM04CONTEN



RGMM20EN Ballast Water Management Systems CHAPTER – B

RULES 2020 6-8

CHAPTER B

DOCUMENTS, REGULATIONS AND STANDARDS

CHAPTER CONTENTS

B1. DOCUMENTATION TO THE RBNA

B2. REGULATIONS

B3. STANDARDS AND UNITS

B1. DOCUMENTATION TO THE RBNA

100. Ballast water exchange at sea

101. Each ship shall have on board and implement a Ballast

Water Management plan according to Regulation B-1 of the

IMO Ballast Water Management Convention, detailing safety procedures for safe exchange of ballast water in

accordance with IMO Resolution A.868(20), approved by

RBNA.

102. Ballast water Record Book: each ship shall have on

board a Ballast Water record book that may be an electronic

record system, or that may be integrated into another record

book or system and, which shall at least contain the

information specified in Appendix II of the Convention.

200. References

201. See the following resolution from MEPC 71 adopted

on 7 July 2017:

a. IACS UR M74 “Installation of Balast Water

Management Systems”

b. Res. MEPC.288(71) 2017 Guidelines for ballast water

exchange (G6)


on 28 October 2016:

a. Res. MEPC.279(70) 2016 Guidelines for approval of

ballast water management systems (G8) - mandatory

from 2020-10-28

203. See the following resolutions from MEPC 55 adopted

on 13 October 2006:

a. Res. MEPC.149(55) Guidelines for ballast water

exchange design and construction standards (G11)

b. Res. MEPC.150(55) Guidelines on design and construction to facilitate sediment control on ships

(G12)


on 24 March 2006:

a. Res. MEPC.140(54) Guidelines approval/oversight of

prototype Ballast Water Treatment technology

programmes (G10)

b. See the following resolutions from MEPC 53 adopted on

22 July 2005;

c. Res. MEPC.124(53) Guidelines for Ballast Water

Exchange (G6)

d. Res. MEPC.125(53) Guidelines For Approval of Ballast

Water Management Systems (G8

e. Res. MEPC.127(53) Guidelines for Development of

Ballast Water Management Plans (G4)

B2. STANDARDS AND UNITS

100. Standards

101. Where required, in addition to the requirements laid

down in these Rules the following apply:

a. INMETRO: National Institute of Metrology,

Standardization and Industrial Quality;

b. ABNT: Brazilian Association of Technical Standards;

c. International standards such as ISO, DIN. IEC. IEEE,

ASME and other accredited organizations.

200. Units

201. Drawings and documents to be submitted to RBNA are

to have all the dimensions given in the international system.

Consecrated dimensions in other systems of units shall have indications of the corresponding values in the international

system.

https://vp.imo.org/Customer/Subscriptions/IMOVEGA/MemberPages/IMODocument.aspx?docId=RES28871ARS










RGMM20EN Ballast Water Management Systems CHAPTER – C

RULES 2020 6-9

CHAPTER C

MATERIALS

CHAPTER CONTENTS

C1. MATERIALS

C1. MATERIALS

100. BWMS materials and equipment

101. The BWMS should be designed and constructed:

a. for robust and suitable operation in the shipboard

environment;

b. for the service for which it is intended;

c. to mitigate any danger to persons on board when

installed. Equipment that could emit dangerous

gases/liquids shall have at least two independent means

of detection and shutdown of the BWMS (i.e. hazardous

gas level reaching lower explosive limits (LEL) or level

of toxic concentrations that can result in severe effects

on human health); and

d. with materials compatible for the substances used,

purpose which it is intended, the working conditions to

which it will be subjected and the environmental

conditions on board.

102. The BWMS systems are to be inspected, tested and

approved in conformity with IMO Resolution

MEPC.279(10), Guidelines for Approval of Ballast Water

Management Systems.

103. All materials and equipment shall be Type Approved

by RBNA or and IACS Classification Society.



RGMM20EN Ballast Water Management Systems CHAPTER – D

RULES 2020 6-10

CHAPTER D

INSTALLATION

CHAPTER CONTENTS

D1. INSTALLATION


TANKERS

Note: The marked text was taken from the Convention

D1. INSTALLATION

100. General requirements

101. All valves, piping fittings and flanges are to comply

with the relevant requirements of RBNA Roles for the Construction and Classification of Steel Ships for open sea

navigation Part III, Title 62, Section 6. In addition, special

consideration can be given to the material used for this

service with the agreement of RBNA.

102. The BWMS is to be provided with by-pass or override

arrangement to effectively isolate it from any essential ship

system to which it is connected.

103. The BWMS is to be operated at a flow rate within the

Treatment Rated Capacity (TRC) range specified in the

Type Approval Certificate (TAC) issued by the Flag Administration.

104. Where a vacuum may occur in the ballast line due to

the height difference, a suitable protection means is to be

provided, e.g. P/V valves or breather valves, and their

outlets are to be led to safe area on open deck.

105. Electric and electronic components are not to be

installed in a hazardous area unless they are of certified safe

type for use in the area. Cable penetrations of decks and

bulkheads are to be sealed when a pressure difference between the areas is to be maintained.

106. When identifying the ballast water exchange

method(s) for the first time for a particular ship, an

evaluation should be made which should include:

a. the safety margins for stability and strength contained in

allowable seagoing conditions, as specified in the

approved trim and stability booklet and the loading

manual relevant to individual types of ships. Account

should also be taken of the loading conditions and the

envisaged ballast water exchange method or methods to be used;

b. the ballast pumping and piping system taking account of

the number of ballast pumps and their capacities, size

and arrangements of ballast water tanks; and

c. the availability and capacity of tank vents and overflow

arrangements, for the flow through method, the

availability and capacity of tank overflow points,

prevention of under and over pressurization of the ballast tanks.

d. longitudinal stress, and where applicable torsional stress

values, not to exceed permitted values with regard to

prevailing sea conditions;

e. wave-induced hull vibrations when carrying out ballast

water exchange;

f. limitations of the available methods of ballast water

exchange in respect of sea and weather conditions;

g. forward and aft draughts and trim, with particular

reference to bridge visibility, slamming, propeller

immersion and minimum forward draft; and

h. additional workloads on the master and crew.

200. Operation involving generation of dangerous gas

201. Where the operating principle of the BWMS involves

the generation of a dangerous gas, the following

requirements are to be satisfied:

a. Gas detection equipment is to be fitted in the spaces

where dangerous gas could be present, and an audible

and visual alarm is to be activated both locally and at the

BWMS control station in the event of leakage. The gas

detection device is to be designed and tested in

accordance with IEC 60079-29-1 or recognized

standards acceptable to RBNA.

b. The ventilation line of a space where dangerous gas

could be present is to be led to a safe area on open deck.

c. The arrangements used for gas relieving, i.e. degas

equipment or equivalent, are to be provided with

monitoring measures with independent shutdown. The

open end of the gas relieving device is to be led to a safe

area on open deck.

300. Sampling system

301. Ballast piping, including sampling lines from ballast

tanks considered as hazardous areas, is not to be led to an

enclosed space regarded as a safe area, without any appropriate measures, except ships carrying liquefied gases

in bulk.

302. However, a sampling point for checking the

performance of BWMS, for ballast water containing

dangerous gas, may be located in a safe area provided the

following requirements are fulfilled:

a. The sampling facility (for BWMS monitoring/control) is

to be located within a gas tight enclosure (hereinafter,




RULES 2020 6-11

referred to as a ‘cabinet’), and the following Paragraphs

D1.302.a.1. through D1.302.a.3. are to be complied.

a.1. In the cabinet, a stop valve is to be installed in each sample pipe.

a.2. Gas detection equipment is to be installed in the

cabinet and the valves specified in Paragraph

D1.302.a. above are to be automatically closed

upon activation of the gas detection equipment.

a.3. Audible and visual alarm signals are to be

activated both locally and at the BWMS control

station when the concentration of explosive gases

reaches a pre-set value, which should not be

higher than 30% of the lower flammable limit (LFL) of the concerned product.

b. The standard internal diameter of sampling pipes is to be

the minimum necessary in order to achieve the

functional requirements of the sampling system.

c. The measuring system is to be installed as close to the

bulkhead as possible, and the length of measuring pipe in

any safe area is to be as short as possible.

d. Stop valves are to be located in the safe area, in both the suction and return pipes close to the bulkhead

penetrations. A warning plate stating "Keep valve

closed when not performing measurements" is to be

posted near the valves. Furthermore, in order to prevent

backflow, a water seal or equivalent arrangement is to be

installed on the hazardous area side of the return pipe.

e. A safety valve is to be installed on the hazardous area

side of each sampling pipe.

303. For the spaces, including hazardous areas, where toxicity, asphyxiation, corrosivity or reactivity is present,

these hazards are to be taken into account and additional

precautions for the ventilation of the spaces and protection

of the crew are to be considered.

400. Ventilation

401. BWMS not in hazardous areas:

a. BWMS that does not generate dangerous gas is to be

located in an adequately ventilated area.

b. A BWMS that generates dangerous gas is to be located

in a space fitted with a mechanical ventilation system

providing at least 6 air changes per hour or as specified

by the BWMS manufacturer, whichever is greater.

402. BWMS in hazardous areas:

a. A BWMS, regardless of whether or not it generates

dangerous gas, is to be located in a space fitted with

mechanical ventilation complying with relevant

requirements, e.g. IEC60092-502, IBC Code, IGC Code,

etc.

500. Special requirements

501. The length of pipe and the number of connections are

to be minimised in piping systems containing dangerous

gases/liquids in high concentration. The following

requirements are also to be satisfied:

a. Pipe joints are to be of welded type except for

connections to shut off valves, double walled pipes or

pipes in ducts equipped with mechanical exhaust

ventilation. Alternatively, it is to be demonstrated that

risk of leakage is minimized and the formation of toxic

or flammable atmosphere is prevented.

b. Location of the piping system is to be away from heat

sources and protected from mechanical damage.

502. For BWMS using chemical substances, handling

procedures are to be in accordance with the Material Safety

Data Sheet and BWM.2/Circ.20, and the following measures

are to be taken as appropriate:

a. The materials used for the chemical storage tanks, piping

and fittings are to be resistant to such chemicals.

b. Chemical storage tanks are to have sufficient strength

and be constructed such that maintenance and inspection

can be easily performed.

c. Chemical storage tank air pipes are to be led to a safe

area on open deck.

d. An operation manual containing chemical injection

procedures, alarm systems, measures in case of

emergency, etc, is to be kept onboard.

503. Where the BWMS is installed in an independent

compartment, the compartment is to be:

a. Provided with fire integrity equivalent to other

machinery spaces.

b. Positioned outside of any combustible, corrosive, toxic,

or hazardous areas unless otherwise specifically

approved.

504. A risk assessment may be conducted to ensure that risks, including but not limited to those arising from the use

of dangerous gas affecting persons on board, the

environment, the structural strength or the integrity of the

ship are addressed.

600. Automation

601. In case of any by-pass or override operation of

BWMS, an audible and visual alarm is to be given and these

events are to be automatically recorded in control

equipment. The valves in the by-pass line which trigger the




RULES 2020 6-12

by-pass operation are to be remote-controllable by control

equipment or fitted with open/close indicator for automatic

detection of the by-pass event.


TANKERS

100. General requirements for BWMS systems in

tankers

101. Where a BWMS system is installed in the cargo area of oil tankers, the requirements for the piping, machinery

and electric installations shall be in conformity with RBNA

Rules for the Construction and Classification of Steel Ships

According to their Mission, Part II, Title 32, Sections 5, 6

and 7.

102. Where the BWMS system is installed both in the cargo

area and outside the cargo area, two separate BWMS

systems are to be considered.

200. Additional requirements for tankers

201. In addition to the requirements of Part II, Title 32,

Section 7, of RBNA Rules for the Construction and

Classification of Steel Ships for open sea navigation, the

following apply:

202. Hazardous area classification is to be in accordance

with IEC 60092-502.

203. For tankers carrying flammable liquids having a

flashpoint not exceeding 60 oC or products listed in the IBC

Code having a flashpoint not exceeding 60 oC or cargoes heated to temperature above their flashpoint and cargoes

heated to temperature within 15 oC of their flashpoint. In

general, two independent BWMS may be required – i.e. one

for ballast tanks in hazardous areas and the other for ballast

tanks in non-hazardous areas.

204. The interconnection of ballast piping between

hazardous areas and in non-hazardous areas may be

accepted if an appropriate isolation arrangement is applied.

a. Means of appropriate isolation are as follows:

a.1. .Two screw down check valves in series with a

spool piece

FIGURE F.D2.204.1. TWO SCREW DOWN CHCK

VALVES IN SERIES WITH A SPOOL PIECE

a.2. or

FIGURE F.D2.204.2. TWO SCREW DOWN CHCK

VALVES IN SERIES WITH A LIQUID SEAL AT

LEAST 1,5 METERS IN DEPTH

a.3. or

FIGURE F.D2.204.3. AUTOMATIC DOUBLE BLOCK

AND BLEED VALVES AND A NON-RETURN VALVE

205. Examples of appropriate isolation arrangements are shown in Figures F.D2.205.1. and F.D2.205.2. Isolation

arrangements are to be fitted on the exposed deck in the

hazardous area. Also, ballast water originating from a

hazardous area is not to discharge into a non-hazardous area,

except as given by Paragraph D1.301.




RULES 2020 6-13

FIGURE F.D2.205.1. BWMS WHICH DOES NOT REQUIRE AFTER-TREATMENT

FIGURE F.D2.205.2. BWMS WHICH REQUIRES AFTER-TREATMENT (INJECTION TYPE)

Note: Appropriate Isolation Means: Two (2) screw down check valves in series with a spool piece or a liquid seal, or

automatic double block and bleed valves



RGMM20EN Ballast Water Management Systems CHAPTER – E

RULES 2020 6-14

CHAPTER E

BALLAST EXCHANGE AND PERFORMANCE

CHAPTER CONTENTS

E1. GENERAL PRINCIPLES

Note: This Chapter is an abstract from the Convention.

E1. GENERAL PRINCIPLES

100. Regulation D-1 Ballast Water Exchange

Standard

101. Ships performing Ballast Water exchange in

accordance with this regulation shall do so with an

efficiency of at least 95% volumetric exchange of Ballast Water.

102. For ships exchanging Ballast Water by the pumping-

through method, pumping through three times the volume of

each Ballast Water tank shall be considered to meet the

standard described in Paragraph D1.101. Pumping through

less than three times the volume may be accepted provided

the ship can demonstrate that at least 95% volumetric

exchange is met.

200. Regulation D-2 Ballast Water Performance

Standard

201. Ships conducting Ballast Water Management in

accordance with this regulation shall discharge less than 10

viable organisms per cubic metre greater than or equal to 50

micrometres in minimum dimension and less than 10 viable

organisms per millilitre less than 50 micrometres in

minimum dimension and greater than or equal to 10

micrometres in minimum dimension; and discharge of the

indicator microbes shall not exceed the specified

concentrations as per the Convention, Regulation D-2,

paragraph 2.

300. Regulation D-3 Approval requirements for

Ballast Water Management systems

301. Except as specified in Paragraph D2.200., Ballast

Water Management systems used to comply with this

Convention must be approved by RBNA taking into account

Guidelines developed by the Organization.

302. Ballast Water Management systems which make use

of Active Substances or preparations containing one or more

Active Substances to comply with the Convention shall be approved by RBNA, based on a procedure developed by

IMO. This procedure shall describe the approval and

withdrawal of approval of Active Substances and their

proposed manner of application. At withdrawal of approval,

the use of the relevant Active Substance or Substances shall

be prohibited within one year after the date of such

withdrawal.

303. Ballast Water Management systems used to comply with this Chapter must be safe in terms of the ship, its

equipment and the crew.

400. Regulation D-4 Prototype Ballast Water

Treatment Technologies

401. For any ship that, prior to the date that the standard in

regulation D-2 would otherwise become effective for it,

participates in a programme approved by RBNA

technologies, the standard in regulation D-2 shall not apply

to that ship until five years from the date on which the ship

would otherwise be required to comply with such standard.

402. For any ship that, after the date on which the standard

in regulation D-2 has become effective for it, participates in

a programme approved by RBNA, taking into account

Guidelines developed by the Organization, to test and

evaluate promising Ballast Water technologies with the

potential to result in treatment technologies achieving a

standard higher than that in regulation D-2, the standard in

regulation D-2 shall cease to apply to that ship for five years

from the date of installation of such technology.

403. In establishing and carrying out any programme to test

and evaluate promising Ballast Water technologies, Parties

shall:

a. take into account Guidelines developed by the

Organization, and

b. allow participation only by the minimum number of

ships necessary to effectively test such technologies.

404. Throughout the test and evaluation period, the treatment system must be operated consistently and as

designed.



RGMM20EN Ballast Water Management Systems CHAPTER – T

RULES 2020 6-15

CHAPTER T

SURVEYS AND CERTIFICATION

CHAPTER CONTENTS

T1. SURVEYS AND CERTITICATION

T1. SURVEYS AND CERTIFICATION

100. Surveys

101. Ships of 400 gross tonnage and above to which this

Rules applies, excluding floating platforms, FSUs and

FPSOs, shall be subject to surveys specified below:

102. An initial survey before the ship is put in service or

before the Certificate is issued for the first time. This

survey shall verify that the Ballast Water Management plan and any associated structure, equipment, systems, fitting,

arrangements and material or processes comply fully with

the requirements of this Convention.

103. A renewal survey at intervals not exceeding five years.

This survey shall verify that the Ballast Water Management

plan and any associated structure, equipment, systems,

fitting, arrangements and material or processes comply fully

with the applicable requirements of this Title and the Rules.

104. An intermediate survey within three months before or

after the second Anniversary date or within three months before or after the third Anniversary date of the Certificate,

which shall take the place of one of the annual surveys. The

intermediate surveys shall ensure that the equipment,

associated systems and processes for Ballast Water

Management fully comply with the applicable requirements

of this Title and the Rules and are in good working order.

Such intermediate surveys shall be endorsed on the

Certificate.

105. An annual survey within three months before or after

each Anniversary date, including a general inspection of the structure, any equipment, systems, fittings, arrangements

and material or processes associated with the Ballast Water

Management plan to ensure that they have been maintained

in accordance and remain satisfactory for the service for

which the ship is intended. Such annual surveys shall be

endorsed on the Certificate.

106. An additional survey either general or partial,

according to the circumstances, shall be made after a

change, replacement, or significant repair of the structure,

equipment, systems, fittings, arrangements and material

necessary to achieve full compliance with this Title and the Convention. The survey shall be such as to ensure that any

such change, replacement, or significant repair has been

effectively made, so that the ship complies with the

requirements of this Convention. Such surveys shall be

endorsed on the Certificate.

FIGURE F.T1.106.1. SURVEY SCHEDULE

Year 0 Year 1 Year 2 Year 3 Year 4 Year 5

Initial

Survey

Anual

Survey

Annual

or

Intemediate

Survey

Annual

or

Intemediate

Survey

Anual

Survey

Renew

al

Survey

200. Issuance or Endorsement of a Certificate

201. The Administration shall ensure that a ship to which

this Title (the Convention) applies is issued a Certificate

after successful completion of a survey conducted in

accordance with regulation E- 1 of the Convention.

RGMM20EN-PIIT110S6-abcdet-00