August 13, 2010 No.

31/2010

STATUTORY ALERT Port State Control – Paris MOU and Black Sea MOU Concentrated
Inspection Campaign
APPLICABILITY Owners and operators of oil tankers, chemical tankers and gas carriers trading to ports
within the Paris and Black Sea MOU regions

INFORMATION The Secretariats of the Paris and Black Sea MOUs have announced they will embark on a
Concentrated Inspection Campaign (CIC) to verify correct damage stability on oil tankers,
chemical tankers and gas carriers. The CIC will last for three months, starting on
September 1, 2010, and ending on November 30, 2010.

The CIC is taking place because it has been concluded that tankers frequently sail:

• when not complying with damage stability requirements

• without a means of assessing damage stability
or
• in a loaded condition not covered by the approved stability book.

In practice, the CIC means that during every port state control inspection of a tanker within
the Paris and Black Sea MOU regions, the stability information book (SIB) and other
applicable documentation will be verified in more detail for compliance with relevant
regulations.

Port State Control Officers (PSCOs) will use a list of nine selected items to verify critical
areas for tanker stability. A copy of the questionnaire they will use is attached and can
also be obtained from the Paris MOU web site www.parismou.org and the Black Sea
MOU web site www.bsmou.org

When deficiencies are found, the actions of PSCOs may range from recording a
deficiency and instructing the Master to rectify it within a certain period, to detaining the
ship until deficiencies have been rectified. Detentions will be published in the monthly list
of detentions available on the Paris and Black Sea MOU web sites.

Owners and operators should ensure that tankers carrying cargo are operated in
accordance with loading conditions specifically approved for the applicable damage
stability requirements, or have been assessed for compliance using approved damage
stability KG/GM limit curves or an onboard damage stability programme acceptable to the
Administration. To assist with this, we have attached our own Guidance Notes and a flow
diagram to this Classification News. We strongly recommend that you forward this
information to your Masters at the earliest opportunity so that they can familiarise
themselves with the questionnaire and the relevant sections of the SIB.

The results of the CIC will be analysed and findings will be presented to the governing
bodies of the Paris and Black Sea MOUs for submission to the International Maritime
Organization (IMO).

Further information
Contact: Jim Barclay
T +44 (0)20 7423 2463
F +44 (0)20 7423 2056
E jim.barclay@lr.org

www.lr.org

© 2010 Lloyd’s Register

Services are provided by members of the Lloyd’s Register Group.

Lloyd’s Register is an exempt charity under the UK Charities Act 1993.
 PARIS MOU CIC ON TANKER DAMAGE STABILITY

TANKER DAMAGE STABILITY QUESTIONNAIRE

Name
IMO Number
Type: Gas, Chemical, Oil

No Question Yes No N/A

1 Does the ship have an approved stability information
book (SIB)?
2 Is the SIB written in a language understood by the
master?
3 Does the approved stability information cover damage
conditions?
4 Can the master demonstrate that the ship is normally
loaded in accordance with the SIB?
5 Has the master verified an alternate loading condition
by written authority from flag/class?
6 Has the master verified an alternate loading condition
by assessing loaded condition against critical damage
KG data, included in the approved stability information?
7 Is there an on-board stability computer program that
includes damage stability?
8 Has the master verified an alternate loading condition
by using the on-board stability computer program for
carrying out damage stability checks?
9 Was the ship detained as a result of this CIC?
Guidance notes

Paris & Black Sea MOUs – Concentrated Inspection Campaign

(CIC) on Tanker Damage Stability

Introduction

The Paris MOU and Black Sea MOU will conduct a CIC on Tanker Damage Stability
compliance from 1 September 2010 to 30 November 2010 on all tankers (oil, gas
and chemical). The PSC inspection focus during the CIC will be examining
documentation relating to trim, intact and damage stability onboard for
compliance with the applicable regulations.

Applicable Regulations

• Intact Stability approval required by Load Line Convention ILLC for all
vessels after 21st July 1968.
• Damage Stability approval required for:
o MARPOL Annex 1 - Oil tankers delivered after 31st Dec 1979
o Chemical Codes (BCH or IBC Code)- Chemical tankers with keel lay after
12th April 1972
o Gas Codes (EGC, GC or IGC Code) - Gas Carriers with building contract after
31st October 1976 or keel lay after 31st Dec 1976 or delivery after 30th June
1980.

Typical Stability Information Onboard

1) Stability Information booklet (SIB) – Standard Loading Conditions

The stability information booklet includes loading cases that have been approved
with reference to intact stability, damage stability (where applicable) and
strength requirements. Damage stability information may also be included in a
separate booklet, however the SIB is the primary document and covers both
intact and damage stability (where applicable).

2) Stability Information booklet (SIB) – Allowable limit curves

The SIB will often include KGmax or GMmin limit curves that allow the master to
evaluate stability for a range of conditions, however these may be for intact
stability only. Reference to MARPOL, BCH/IBC Code or EGC/GC/IGC Code will
show that damage stability has been included.

3) Stability Loading Programme (i.e. Loading Instrument)

Software undertaking longitudinal strength and stability calculations for any
loading condition. The software may or may not be able to verify damage stability
compliance. Presence of damage stability capability can be confirmed if the
programme or user manual makes reference to MARPOL, BCH/IBC Code or
EGC/GC/IGC Code or if the programme has a damage stability option.

There is no mandatory statutory requirement for Loading Instruments to be

approved.

Paris & Black Sea MOUs – Concentrated Inspection Campaign (CIC) on Tanker Damage Stability
© Lloyd's Register August 2010
Guidance notes

PSC Inspection Format

Paris MOU have released a series of questions that are to be used by inspectors
to assess the compliance of vessels during the CIC. Guidance is given below to
ship's master for each question:

Q.1 Does the ship have an approved stability information booklet (SIB)?
The ship's master should provide a SIB approved or provisionally approved (for
new ships or ships which have recently changed flag) by Lloyd's Register on
behalf of the Flag. This can be demonstrated by the presence of an approval
statement on first few pages of the SIB.

Q.2 Is the SIB written in a language understood by the master?

The SIB should be in the working language of the ship or at least be in English.
The master, who has overall responsibility of the vessel, should be able to
demonstrate his understanding of the SIB with the language so written.

Q.3 Does the approved stability information cover damage conditions?

Where required by MARPOL, chemical codes or gas codes (see Applicable

Regulations section above), the vessel should have evidence of damage stability
approval for all the loading conditions included in the SIB. A useful indication the
SIB has been assessed for damage stability is that the SIB is stamped as
complying with MARPOL Annex I, BCH/IBC Code or EGC/GC/IGC Code.

Q.4 Can the master demonstrate that the ship is normally loaded in
accordance with the SIB?
Loading conditions which are not significantly different from existing approved
loading conditions may be considered acceptable at the discretion of PSC. Refer
to historic record of loading conditions and compare to approved conditions.

To be acceptable the filling of each cargo and ballast tank must lie within 1% of
the weight in the approved condition and GMf must lie within 2 cm of the
approved condition GMf.

If the answer to this question is “Yes” all remaining questions can be completed
as “N/A”. If the answer is “No”, you must be able to demonstrate compliance by
answering “Yes” to either Question 5, 6, or 7 & 8.

Q.5 Has the master verified an alternate loading condition by written

authority from flag/class?
Where the ship is not loaded as per an approved condition in the SIB, it is
acceptable if written authority from flag/class has been obtained that this
alternative loading condition is satisfactory. This will normally be in the form of
printed loading conditions, in addition to those included in the SIB. The additional
loading conditions must be accompanied by an approval statement.

Q.6 Has the master verified an alternate loading condition by assessing

loaded condition against critical damage KG data, included in the
approved stability information?
Assessing an alternate loading condition by referring to critical damage KGf or GMf
data in the approved SIB would be an acceptable alternative. The limiting KGf or
GMf limits should be clearly presented with sufficient guidance to ensure they are
being correctly applied. Refer to KGf/GMf limit curve notes on previous page.

Paris & Black Sea MOUs – Concentrated Inspection Campaign (CIC) on Tanker Damage Stability
© Lloyd's Register August 2010
Guidance notes

Q.7 Is there an on-board stability computer programme that includes

damage stability?
Q.7 & Q.8 should be considered together. Presence of damage stability capability
can be confirmed if the programme or user manual makes reference to MARPOL,
BCH/IBC Code or EGC/GC/IGC Code or if the programme has a damage stability
option.

Note: There is no mandatory statutory requirement for Loading Instruments to be

approved.

Q.8 Has the master verified an alternate loading condition by using the
on-board stability computer programme for carrying out damage stability
checks?
Present printouts of current and planned conditions calculated using the loading
instrument.

Q.9 Was the ship detained as a result of this CIC?

The vessel might be detained: -
- if the answers to any one of Q1,2 or 3 are “No”.
- where compliance for the current arrival or departure sailing conditions are not
demonstrated by a “YES” answer at any one of Q4, 5, 6, or 8.

Please also be guided by the flowchart appended to these guidance

notes.

Paris & Black Sea MOUs – Concentrated Inspection Campaign (CIC) on Tanker Damage Stability
© Lloyd's Register August 2010
 Start LR HKG 2010-08-09

Vessel is
No
oil, chem, or gas tanker

Yes

Vessel operates only

with Standard Load Cond (SLC)
Yes
in approved Stability
Q.4
Information Booklet (SIB)

No

Alternate Load Cond

Yes (ALC) approved by Class/ Q.5
Flag

Seek for Class/

No Flag to approve
No ALC

Vessel has approved damage

Yes stability limiting KG/GM Q.6
curves or tables

Use limiting KG/GM

to assess ALC for
compliance with
damage stability

adjust ALC
No Seek for Class/Flag
to approve damage
No
stability limiting KG/
GM curves or tables
ALC is complying No
Yes
with damage stability

Vessel has
Computer Loading Instrument Q.7
Yes
(CLI) for damage stability
function

Use CLI and check

ALC for compliance
with damage stability

adjust ALC No Obtain a loading

No instrument with
damage capability
Q.8
ALC is complying No
Yes
with damage stability

Restrict the use of vessel to

loading conditions as per
approved SIB

EXIT