(a) The hull, machinery and equipment (other than
items in respect of which Cargo Ship Safety Equipment Certificates
or Cargo Ship Safety Radio Certificates are issued) of a cargo ship
shall be surveyed on completion and thereafter in such a manner as
the Administration may consider necessary in order to ensure that
their condition is in all respects satisfactory and at the following
(i) at intervals specified by the Administration
but not exceeding five years (periodical surveys);
(ii) in addition to such periodical surveys a
tanker of ten years of age and over shall undergo a minimum of one
intermediate survey during the period of validity of its Cargo Ship
Safety Construction Certificate.footnote In
cases where only one such intermediate survey is carried out in any
one certificate validity period, it shall be held not before six months
prior to, nor later than six months after, the half-way date of the
certificate's period of validity.
(b) The initial and periodical survey shall be
such as to ensure that the arrangements, material and scantlings of
the structure, boilers and other pressure vessels, their arrangements,
main and auxiliary machinery including steering gear and associated
control systems, electrical installation and other equipment are in
all respects satisfactory for the service for which the ship is intended.
Such surveys shall, in the case of tankers, also include inspection
of the outside of the ship's bottom, pump-rooms, cargo and bunker
piping systems, vent piping, pressure vacuum valves and flame screens.
(c) The intermediate survey of tankers of ten
years of age and over shall include inspection of steering gear equipment
and associated control systems, pump-rooms. cargo and bunker piping
systems on deck and in pump-rooms, vent piping, pressure vacuum valves
and flame screens, the electrical installations in dangerous zones,
and the outside of the ship's bottomfootnote.
In addition to the visual inspection of the electrical installation,
the insulation resistance of the electrical equipment dangerous zones
is to be tested. If, upon examination, there should be any doubt as
to the condition of the piping, extra measures, such as pressure tests
and thickness determination, shall be taken as necessary. Such intermediate
surveys shall be endorsed on the Cargo Ship Safety Construction Certificate
issued in accordance with regulation
12(a)(ii) of this chapter.
(d) A survey, either general or partial according
to the circumstances, shall be made when required after an investigation
prescribed in regulation 11 of
this chapter, or whenever any important repairs or renewals are made.
The survey shall be such as to ensure that the necessary repairs or
renewals have been effectively made, that the material and workmanship
of such repairs or renewals are in all respects satisfactory, and
that the ship is fit to proceed to sea without danger to the ship
or persons on board.