General Policy Discussion
General Requirements for this Section. ACSA vessel owners or operators are responsible
for preparing the hull, through-hull fittings, shaft(s), propeller(s), rudder, tanks, voids, and
other confined spaces, as appropriate, for required hull examinations and internal structural
examination (ISE). This includes cleaning, disassembling, gas freeing, testing for toxicity,
and ventilating.
Owners will notify the local OCMI 30 days in advance of all scheduled dry-docking. The
fully qualified marine inspector should normally conduct the examinations in the company of
a vessel representative (port engineer, ship's officer, etc.), as well as any other interested
parties or agencies (a classification society surveyor, an insurance underwriter, a shipyard
representative, etc.). Whether accomplished in one visit or over a period of time, each
particular exam should consist of a careful inspection of all accessible parts of the vessel's
structure, fittings, and appurtenances, as appropriate.
● Deficiencies. Deficiencies should be called to the attention of the owner's representative
at once. When deemed necessary, the inspector should note requirements for correction of
deficiencies on Form CG-835. Discussion of the vessel's condition and alternate methods
of repair should result in adequate repairs with the least disagreement over methods and
extent of repair.
● Repairs. Standards for repairs to the hull, framing, and other structural members are
found Navigation and Vessel Inspection Circular (NVIC) 7-68, and shall be completed
consistent with principles of good marine practice.
● Replacement or Additions. For replacement or addition of structural members, ABS
rules for Building and Classing Steel Vessels Under 90 Meters will be utilized as the
accepted standard for all issues related to the watertight envelope and subdivision.
The marine inspector must be satisfied that the vessel can operate safely. In cases of severe
damage, controversy, or unusual circumstances beyond the inspector's experience, the OCMI
should be notified immediately.
Drydock Intervals. The ACSA program is intended to have enrolled vessels meet alternate
standards for classification and load line, especially as it relates to the inspection of the hull
and structure of the watertight envelop.
● Vessels without Load Lines: Each vessel will be dry-docked, and an internal structural
examination (ISE) conducted a minimum of 2 times in any 5-year period with a maximum
interval of 3 years.
● Vessels with Load Lines: Under longstanding classification rules, vessels which are both
classed and load lined are required to be drydocked and have internal structural exams
(ISE) conducted twice in any 5-year period with a maximum interval of 3 years. As such,