Resolution MEPC.99(48)

AMENDMENTS TO THE CONDITION ASSESSMENT SCHEME

(Adopted on 11 October 2002)

 

 

THE MARINE ENVIRONMENT PROTECTION COMMITTEE,

 

RECALLING Article 38(a) of the Convention on the International Maritime Organization concerning the functions of the Marine Environment Protection Committee (the Committee) conferred upon it by international conventions for the prevention and control of marine pollution,

 

NOTING article 16 of the International Convention for the Prevention of Pollution from Ships, 1973 (hereinafter referred to as the "1973 Convention") and article VI of the Protocol of 1978 relating to the International Convention for the Prevention of Pollution from Ships, 1973 (hereinafter referred to as the "1978 Protocol") which together specify the amendment procedure of the 1978 Protocol and confer upon the appropriate body of the Organization the function of considering and adopting amendments to the 1973 Convention, as modified by the 1978 Protocol (MARPOL 73/78),

 

NOTING ALSO that regulation 13G(7) of Annex I of MARPOL 73/78 specifies that the Condition Assessment Scheme, adopted by resolution MEPC.94(46), may be amended provided such amendments shall be adopted, brought into force and take effect in accordance with the provisions of article 16 of the 1973 Convention relating to amendment procedures applicable to an appendix to an Annex,

 

HAVING CONSIDERED, at its forty-eighth session, the proposed amendments to the Condition Assessment Scheme adopted by resolution MEPC.94(46),

 

1. ADOPTS, in accordance with article 16(2)(d) of the 1973 Convention, the amendments to the Condition Assessment Scheme, the text of which is set out at Annex to the present resolution;

 

2. DETERMINES, in accordance with article 16(2)(f)(iii) of the 1973 Convention, that the amendments shall be deemed to have been accepted on 1 September 2003, unless, prior to that date, not less than one third of the Parties to MARPOL 73/78 or Parties the combined merchant fleets of which constitute not less than 50 per cent of the gross tonnage of the world's merchant fleet, have notified to the Organization their objections to the amendments;

 

3. INVITES Parties to MARPOL 73/78 to note that, in accordance with article 16(2)(g)(ii) of the 1973 Convention, the said amendments shall enter into force on 1 March 2004 upon their acceptance in accordance with paragraph 2 above;

 

4. REQUESTS the Secretary-General, in conformity with article 16(2)(e) of the 1973 Convention, to transmit to all Parties to MARPOL 73/78 certified copies of the present resolution and the text of the amendments contained in the Annex;

 

5. REQUESTS FURTHER the Secretary-General to transmit copies of this resolution and its Annex to Members of the Organization which are not Parties to MARPOL 73/78; and

 

6. INVITES the Maritime Safety Committee to note the amendments to the Condition Assessment Scheme.

 

Annex.

AMENDMENTS TO THE CONDITION ASSESSMENT SCHEME

 

1. The following new paragraph is added after the existing paragraph 6.2.2.13:

 

"6.2.3 The Survey Plan shall be developed using the Model Survey Plan for CAS set out in Appendix 3."

 

2. The following text is added after the existing paragraph 6.3.2:

 

"6.4 Conduct of CAS Surveys

 

6.4.1 The conditions for CAS Survey, the conditions and method of access to the structures, the equipment for CAS Survey and the communication arrangements implemented during the CAS Survey shall meet the Mandatory Requirements for the Safe Conduct of CAS Surveys set out in Appendix 4."

 

3. In Table 7.2.2, the note, at the end of the entry "A minimum of 30% of all web frames and rings, in each remaining cargo wing tank" is replaced by "(see note 1 and 3)".

 

4. In Table 7.2.2 at the end of the entry "A minimum of 30% of deck and bottom transverses, including adjacent structural members, in each cargo centre tank" the following text is added "(see note 3)".

 

5. In Table 7.2.2, at the bottom of the table, after the existing Note 2 the following new note is added:

 

"3. The 30% shall be rounded up to the next whole integer."

 

6. The following new Appendices are added after the existing Appendix 2:

 

"Appendix 3.

Model Survey Plan for CAS Basic Information and Particulars

 

 

1. Preamble

1.1 Scope

 

1.1.1 The present CAS Survey Plan covers the minimum extent of overall surveys, close-up surveys, thickness measurements and pressure testing within the cargo area, ballast tanks, including fore and aft peak tanks, required by the CAS adopted by resolution MEPC.94(46) as amended by resolution MEPC.99(48) for this ship.

 

1.1.2 The practical aspects of any part of the CAS survey shall be acceptable to the attending survey or(s).

 

1.2 Documentation

 

All documents used in the development of the CAS survey plan shall be available onboard during the CAS survey as required by paragraph 6.3.1 of the CAS.

 

2. Arrangement of Tanks

 

This section of the Plan shall provide information (either in the form of plans or text) on the arrangement of tanks that fall within the scope of the CAS survey.

 

3. List of tanks with information on their use, extent of coatings and corrosion protection system

 

This section of the Plan shall indicate any changes relating to (and shall update) the information on the use of the tanks of the ship, the extent of coatings and the corrosion protective system provided in the Survey Planning Questionnaire.

 

4. Conditions for survey

(e.g. information regarding tank cleaning, gas freeing, ventilation, lighting etc.)

 

This section of the Plan shall indicate any changes relating to (and shall update) the information on the conditions for survey provided in the Survey Planning Questionnaire.

 

5. Provisions and method of access to structures

 

This section of the Plan shall indicate any changes relating to (and shall update) the information on the provisions and methods of access to structures provided in the Survey Planning Questionnaire.

 

The Mandatory Requirements for the Safe Conduct of CAS Surveys are contained in Appendix 3 to this Plan.

 

6. List of equipment for survey

(to be provided by the Company and supplemented by the Recognised Organisation, as necessary)

 

This section of the Plan shall identify and list the equipment that will be made available for carrying out the CAS survey and the required thickness measurements.

 

7. Survey requirements

 

7.1 Overall survey

The CAS requirements

 

Paragraph 7.2.1 (and 5.2) of the CAS require that the hull structures in way of cargo tanks, pump rooms, cofferdams, pipe tunnels, void spaces within the cargo area and all ballast tanks shall undergo an overall survey.

 

The Plan

 

This section of the Plan shall identify and list the spaces that shall undergo an overall survey for this ship.

 

7.2 Close up survey

 

The CAS requirements

 

Paragraph 7.2.2 (and Table 7.2.2) of the CAS state the hull structures that shall undergo a close up survey. These are:

 

 

Notes:

 

1. Complete transverse web frame ring including adjacent structural member.

 

2. Complete transverse bulkhead, including girder and stiffener systems and adjacent members

 

3. The 30% shall be rounded up to the next whole integer.

 

In addition paragraphs 7.2.3 and 7.2.4 of the CAS provide further guidance as far as the extent and scope of the close up survey.

 

The Plan

 

This section of the Plan shall identify and list, using paragraph 7.2.2 (and Table 7.2.2) of the CAS, the hull structures that shall undergo a close up survey for this ship. In particular it shall:

 

.1 identify the cargo wing tank in which all web frame rings will undergo close up survey and indicate the number of web frame rings involved;

 

.2 identify the remaining cargo wing tanks in which a minimum of 30 % of the web frame rings will undergo a close up survey and indicate, for each tank, the number of web frame rings involved; and

 

.3 identify the cargo centre tanks in which a minimum of 30 % of the deck and bottom transverses, including adjacent structural members, in each cargo centre tank will undergo close up survey and indicate, for each tank, the number of the deck and bottom transverses, including adjacent structural members, involved.

 

8. Identifications of tanks for tank testing

 

The CAS requirements

 

Paragraph 6.2.2.9 of the CAS states that the tank testing shall be as per annex 3 of Annex B of resolution A.744(18) as amended.

 

The Plan

 

This section of the Plan shall identify and list the tanks that shall undergo tank testing for this ship.

 

8. Identification of areas and sections for thickness measurements

 

The CAS requirements

 

paragraph 7.3.3 (and Table 7.3.3) of the CAS specify the minimum requirements for thickness measurements for CAS survey. These are as follows:

 

 

Notes:

 

1. Complete transverse web frame ring including adjacent structural member.

 

2. Complete transverse bulkhead, including girder and stiffener systems and adjacent members

 

3. Where substantial corrosion is found, the extent of thickness measurements shall be increased accordingly (see paragraph 7.3.4 of the CAS).

 

In addition paragraphs 7.3.4 to 7.3.8 of the CAS provide further guidance on the extent and increase of the thickness measurements to be taken.

 

The Plan

 

This section of the Plan shall identify and list, using paragraph 7.3.3 (and Table 7.3.3) of the CAS, the areas and sections where thickness measurements shall be taken.

 

10. Hull Materials

(to be specified by the Recognised Organisation)

 

This section of the Plan shall identify, using a format similar to that of the table below, the materials used in the hull structures that fall within the scope of the CAS for the purpose of providing a concise reference.

 

 

Guidance Notes:

 

1. Material grade is Mild Steel (MS) where not shown otherwise.

 

2. Material grade HTS indicates High Tensile Steel; SS indicates Stainless Steel; and CS indicates Clad Steel.

 

3. In case of repairs material, grade, type and the extent shall be verified from drawings.

 

11. Minimum thickness of hull structures

(to be specified by the Recognised Organisation)

 

This section of the Plan shall specify the minimum thickness* for hull structures of this ship that are subject to the CAS (indicate either (a) or preferably (b), if such information are available):

______________

* The wastage allowance tables shall be attached to the CAS Survey Plan.

 

a) [] Determined from the attached* wastage allowance table and the original thickness according to the hull structure plans of the ship;

 

b) [] Given in the following table(s)

 

 

12. Thickness Measurement (TM) Firm

 

This section of the Plan shall identify changes, if any, relating to the information on the Thickness Measurement (TM) Firm provided in the Survey Planning Questionnaire.

 

13. Damage experience related to the ship

 

This section of the Plan shall, using the tables provided below, provide details of the hull damages for at least the last three years in way of the cargo and ballast tanks areas and void spaces within the cargo area. These damages are subject to CAS survey.

 

Hull damages sorted by location for this ship

(to be provided by the Company and supplemented by the Recognised Organisation, as necessary)

 

 

Hull damages for sister or similar ships (if available) in the case of design related damage

(to be provided by the Company and supplemented by the Recognised Organisation, as necessary)

 

 

14. Areas identified with substantial corrosion from previous surveys

(to be provided by the Recognised Organisation)

 

This section of the Plan shall identify and list the areas of substantial corrosion from previous surveys.

 

15. Critical structural areas and suspect areas

(to be provided by Company and supplemented by the Recognised Organisation, as necessary)

 

This section of the Plan shall identify and list the critical structural areas and the suspect areas, when such information is available.