4 Intermediate survey
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - 2011 ESP Code – International Code on the Enhanced Programme of Inspections During Surveys of Bulk Carriers and Oil Tankers, 2011 – Resolution A.1049(27) - Annex B – Code on the Enhanced Programme of Inspections During Surveys of Oil Tankers - Part B – Code on the Enhanced Programme of Inspections During Surveys of Oil Tankers other than Double-Hull Oil Tankers - 4 Intermediate survey

4 Intermediate survey

Parent topic: Part B – Code on the Enhanced Programme of Inspections During Surveys of Oil Tankers other than Double-Hull Oil Tankers

4.1 General

  4.1.1 Items that are additional to the requirements of the annual survey may be surveyed either at the second or third annual survey or between these surveys.

  4.1.2 The extent of survey of cargo and ballast tanks is dependent on the age of the ship and is specified in 4.2, 4.3 and 4.4.

  4.1.3 For weather decks, an examination as far as applicable of cargo, crude oil washing, bunker, ballast, steam and vent piping systems as well as vent masts and headers shall be carried out. If upon examination there is any doubt as to the condition of the piping, the piping may be required to be pressure tested, thickness measured or both.

  4.1.4 Concurrent crediting to both intermediate survey and renewal survey for surveys and thickness measurements of spaces shall not be acceptable.

4.2 Oil tankers 5 to 10 years of age

  4.2.1 All ballast tanks shall be examined. When considered necessary by the Administration, thickness measurement and testing shall be carried out to ensure that the structural integrity remains effective.

  4.2.2 A ballast tank shall be examined at subsequent annual intervals where:

  • .1 a hard protective coating has not been applied from the time of construction; or

  • .2 a soft or semi-hard coating has been applied; or

  • .3 substantial corrosion is found within the tanks; or

  • .4 the hard protective coating is found to be in less than GOOD condition and the hard protective coating is not repaired to the satisfaction of the surveyor.

  4.2.3 In addition to the requirements above, suspect areas identified at previous surveys shall be subject to overall and close-up survey.

4.3 Oil tankers 10 to 15 years of age

  4.3.1 The requirements of the intermediate survey shall be to the same extent as the previous renewal survey as required in 2 and 5.1. However, pressure testing of cargo and ballast tanks and the requirements for longitudinal strength evaluation of hull girder as required in 8.1.2 shall not be required unless deemed necessary by the Administration.

  4.3.2 In application of 4.3.1, the intermediate survey may be commenced at the second annual survey and be progressed during the succeeding year with a view to completion at the third annual survey in lieu of the application of 2.1.1.

  4.3.3 In application of 4.3.1, an underwater survey may be considered in lieu of the requirements of 2.2.

4.4 Oil tankers exceeding 15 years of age

  4.4.1 The requirements of the intermediate survey shall be to the same extent as the previous renewal survey as required in 2 and 5.1. However, pressure testing of cargo and ballast tanks and the requirements for longitudinal strength evaluation of hull girder as required in 8.1.2 shall not be required unless deemed necessary by the Administration.

  4.4.2 In application of 4.4.1, the intermediate survey may be commenced at the second annual survey and be progressed during the succeeding year with a view to completion at the third annual survey in lieu of the application of 2.1.1.

  4.4.3 In application of 4.4.1 a survey in dry-dock shall be part of the intermediate survey. The overall and close-up surveys and thickness measurements, as applicable, of the lower portions of the cargo tanks and water ballast tanks shall be carried out in accordance with the applicable requirements for intermediate surveys, if not already performed.

  • Note: Lower portions of the cargo and ballast tanks are considered to be the parts below the light ballast water line.
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