CONTINUOUS HULL SURVEYS

Continuous Hull Surveys

-1. Application

(1) This system covers internal examinations, close-up surveys and thickness measurements

of tanks and spaces and pressure tests of tanks.

(2) This system is not applicable to oil tankers, bulk carriers, ships carrying dangerous

chemicals in bulk and general dry cargo ships of not less than 500 gross tonnage.

(3) For ships more than 10 years of age, the ballast tanks are to be internally examined twice

in each five-year class period, ie. once within the scope of the intermediate survey and

once within the scope of the continuous system for the special survey.

In other words CHS is not applicable to ESP ships (For ESP ships refer A.744(18)

-2. DETAILS:

 (1) Each cycle of Continuous Hull Surveys is to be planned to commence at the time of the

next survey to classification survey or any special survey and complete internal

examinations (including thickness measurements) of each tank and space and pressure

tests by the completion of the subsequent special surveys.

“Continuous Hull Survey Record” survey file is to be maintained on board..

(2) After confirming that the submitted CHS plan complies with the requirements for all tanks

and spaces, the application is to be approved and returned to the applicant for placing in

the onboard survey file. (One copy is to be forwarded to Classification Department.)