Classification Societies are non-governmental organizations that establish and maintain technical standards for the construction and operation of ships and offshore structures. When acting as a Recognized Organization (RO), they perform statutory surveys and issue certificates on behalf of Flag States (the country where the ship is registered). This delegation of authority is crucial as it allows Flag States, who may lack the global presence or technical expertise, to ensure compliance with international conventions.

Their key roles as an RO include:

• Performing Statutory Surveys: Conducting surveys mandated by international conventions (e.g., SOLAS, MARPOL, Load Line) to ensure the ship meets safety, environmental, and other regulatory requirements. These surveys include initial, annual, intermediate, and renewal surveys for certificates like Safety Construction, Safety Equipment, IOPP, and Load Line.
• Issuing Statutory Certificates: On satisfactory completion of surveys, they issue the relevant international certificates attesting to the ship's compliance.
• Ensuring Compliance: Verifying that the ship's design, construction, equipment, and operational procedures adhere to the standards set by international conventions and national regulations.
• Approval of Plans and Designs: Reviewing and approving ship designs, plans, and technical specifications to ensure they meet the applicable statutory requirements before construction begins.
• Witnessing Tests and Trials: Attending and witnessing various tests and trials of ship systems and equipment (e.g., machinery, steering gear, fire-fighting systems) to confirm their proper functioning.
• Investigation of Casualties: In some cases, they may be involved in investigations of maritime casualties to determine the causes and recommend corrective actions, contributing to overall safety improvements.
• Continuous Monitoring: Through periodic surveys and audits, they continuously monitor the ship's condition and operation to ensure ongoing compliance throughout its service life.

The Enhanced Survey Program (ESP) is a comprehensive set of survey requirements for specific types of ships to ensure their structural integrity throughout their operational life. It goes beyond the scope of regular statutory surveys by focusing intensely on the condition of hull structures, including tanks, cargo holds, and other critical areas prone to corrosion and fatigue. The aim is to detect and address any deterioration at an early stage, thereby preventing structural failures and potential pollution incidents.

Key aspects of ESP include:

• Scope: Detailed examinations of the ship's hull structure, including extensive close-up surveys, thickness measurements, and testing of tanks.
• Survey Stages: Applied during special (renewal) surveys, intermediate surveys, and annual surveys, with increasing intensity at renewal surveys.
• Documentation: Requires comprehensive documentation of survey findings, including reports, sketches, and photographic evidence of any defects or repairs.
• Planning: Requires thorough planning meetings between the ship's owner/operator and the Classification Society to agree on the scope and extent of the survey.

Applicability: ESP is primarily applicable to:

• Oil Tankers: All oil tankers of 500 gross tonnage and above.
• Chemical Tankers: All chemical tankers of 500 gross tonnage and above.
• Bulk Carriers: All bulk carriers of 500 gross tonnage and above.

The specific requirements for each ship type are detailed in IMO resolutions and Classification Society rules, often incorporating IACS (International Association of Classification Societies) Unified Requirements.

A "Condition of Class" (COC), also sometimes referred to as a "Recommendation" or "Survey Requirement," is a formal requirement imposed by a Classification Society on a shipowner or operator to rectify a deficiency or carry out a specific action to maintain the ship's class. It signifies that while a defect or non-conformity has been identified, it is not immediately jeopardizing the safety or integrity of the vessel to the extent that class needs to be suspended or withdrawn outright, provided the condition is addressed within a specified timeframe.

Key characteristics of a COC:

• Identification of Deficiency: Arises when a surveyor identifies a defect, damage, non-conformity with rules, or a required repair during a survey (e.g., annual, intermediate, special survey, or unscheduled inspection).
• Formal Requirement: It is a mandatory requirement that must be complied with.
• Specified Timeframe: A COC will always have a specific due date or a condition by which it must be cleared (e.g., "to be dealt with at next dry-docking," "before departure from next port," "within 3 months").
• Impact on Class: Failure to comply with a COC within the stipulated timeframe can lead to the suspension or withdrawal of the ship's class, which has severe consequences for its ability to trade internationally.
• Documentation: COCs are officially recorded in the ship's survey status and are accessible to port state control authorities and other stakeholders.
• Purpose: To ensure that the ship's structure, machinery, equipment, and systems continue to meet the Classification Society's rules and statutory requirements, thereby maintaining its seaworthiness and safety standards.