An Introduction and Practical Guide to IMO Conventions and Global Ratification
Introduction: Why the Status of Treaties Matters in International Shipping
International shipping is governed by a unique legal system. Unlike national laws, maritime regulations are created at the international level and only become binding when countries formally accept them. This acceptance process—known as ratification or accession—determines whether an IMO convention is legally applicable in a particular State.
For shipowners, operators, port authorities, regulators, inspectors, educators, and researchers, it is essential to know which IMO conventions are in force, which countries are parties, and from what date obligations apply. A regulation that is mandatory for one flag State may not yet apply to another.
To provide transparency and authoritative information on this issue, the International Maritime Organization (IMO) offers the “Status of Treaties” module within the Global Integrated Shipping Information System (GISIS).
This article provides a comprehensive introduction and practical guide to the Status of Treaties option in GISIS. It explains what treaty status means, how the module works, what information it provides, and why it is critical for compliance, policy analysis, and maritime education worldwide.
Understanding GISIS and Its Legal Governance Role
What Is the IMO Global Integrated Shipping Information System?
The Global Integrated Shipping Information System (GISIS) is an IMO-managed online platform that consolidates maritime information submitted by IMO Member States under international conventions, codes, and resolutions.
GISIS supports:
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Transparency in international maritime regulation
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Consistent implementation of IMO instruments
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Access to official, State-submitted data
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Legal and administrative clarity
Among its modules, Status of Treaties plays a central role in understanding the legal reach of IMO regulations.
What Does “Status of Treaties” Mean?
Treaties, Conventions, and Mandatory Instruments
In IMO terminology, a treaty usually refers to:
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An IMO convention (such as SOLAS or MARPOL)
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A protocol or amendment to a convention
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A mandatory code made binding through a convention
The “status” of a treaty describes:
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Whether it has entered into force
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Which States are parties
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The dates of ratification, accession, or acceptance
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Any declarations or reservations made by States
Why Treaty Status Is Crucial for Maritime Compliance
Legal Applicability Is Not Automatic
An IMO convention does not automatically apply worldwide when adopted. It only becomes binding when:
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The required number of States ratify it, and
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Each individual State accepts it through national legal procedures
Therefore, knowing the status of treaties is essential to determine legal obligations.
Purpose of the Status of Treaties Module in GISIS
Core Objectives
The Status of Treaties module aims to:
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Provide official information on IMO conventions and protocols
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Show which States are parties to each instrument
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Indicate dates of entry into force and acceptance
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Support legal clarity and regulatory certainty
It acts as the authoritative reference point for treaty participation.
What Information Is Available in the GISIS Status of Treaties Module?
Types of Information Displayed
Depending on the instrument selected, the module may show:
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Title of the convention or protocol
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Date of adoption
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Date of entry into force
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List of Contracting States
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Date of ratification, accession, or acceptance for each State
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Declarations, reservations, or statements (where applicable)
This information is structured and standardized across instruments.
Major IMO Conventions Covered
SOLAS – Safety of Life at Sea
The Status of Treaties module shows:
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Which States are parties to SOLAS
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Acceptance of protocols and amendments
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Global coverage of safety obligations
SOLAS is one of the most widely ratified IMO conventions.
MARPOL – Prevention of Pollution from Ships
For MARPOL, the module provides:
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Ratification status of the convention
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Acceptance of individual annexes (I–VI)
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Dates when obligations became binding
This is critical because not all States accept all annexes.
STCW – Seafarer Training and Certification
The module shows:
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Participation in the STCW Convention
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Acceptance of major amendments
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Global implementation status of training standards
Other IMO Instruments
The module also covers:
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Load Line Convention
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Ballast Water Management Convention
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Anti-Fouling Systems Convention
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Tonnage Measurement Convention
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Maritime Labour Convention (via IMO/ILO coordination references)
Who Submits and Maintains Treaty Status Information?
Role of IMO Member States and the IMO Secretariat
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States notify the IMO of ratification or accession
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The IMO Secretariat records and publishes this information
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GISIS acts as the official public interface
The data is therefore legally authoritative.
How to Access the Status of Treaties Module in GISIS
Step 1: Enter the GISIS Public Area
Users access GISIS via the IMO website and enter the Public Area, which does not require login.
Step 2: Select “Status of Treaties”
From the GISIS module list, users select “Status of Treaties”.
Step 3: Choose a Convention or Instrument
Users can:
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Select a specific IMO convention
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View participation by State
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Check entry-into-force dates and legal coverage
Practical Use Cases of the Status of Treaties Module
Shipowners and Operators
Shipowners use the module to:
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Confirm which conventions apply to their flag
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Understand compliance obligations
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Plan fleet upgrades and certification
Flag State Administrations
Administrations rely on treaty status data to:
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Track national commitments
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Coordinate implementation timelines
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Support legislative and regulatory processes
Port State Control Authorities
PSC authorities use treaty status information to:
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Determine applicable requirements during inspections
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Understand differences between flag States
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Apply regulations correctly and consistently
Importance for Chartering, Insurance, and Finance
Contractual and Risk Considerations
Charterers and insurers need to know:
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Whether a ship operates under fully ratified conventions
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If environmental or safety rules apply
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Regulatory risk exposure
GISIS treaty status data supports due diligence and risk assessment.
Role in Maritime Policy and Research
Supporting Evidence-Based Policy
Researchers and policymakers use treaty status data to:
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Analyze global adoption trends
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Identify regulatory gaps
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Assess effectiveness of IMO instruments
This supports continuous improvement of maritime governance.
Relationship with Other GISIS Modules
The Status of Treaties module complements:
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Ship and Company Particulars – identifying applicable flags
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Recognized Organizations – delegation under conventions
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Marine Casualties and Incidents – safety outcomes
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Port Reception Facilities – MARPOL implementation
Together, they provide a complete regulatory context.
Common Misunderstandings About Treaty Status
Entry into Force vs National Implementation
A convention may be in force internationally but still require:
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National legislation
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Administrative arrangements
GISIS shows treaty status, not domestic law details.
Acceptance of Annexes and Amendments
For conventions like MARPOL, annex acceptance is not automatic. GISIS clarifies which parts apply.
Best Practices for Using the Status of Treaties Module
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Always check treaty status by flag State
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Pay attention to entry-into-force dates
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Review annex-specific acceptance
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Use GISIS as the primary legal reference
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Combine with flag State circulars when necessary
Educational Value for Maritime Students and Training Institutions
For maritime education, this module provides:
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Clear understanding of international maritime law
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Practical insight into treaty-based regulation
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Real-world context for compliance and enforcement
It is especially useful in courses on:
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Maritime law
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International regulation
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Port State Control
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Maritime policy and governance
Treaty Status in a Changing Regulatory Landscape
New Regulations and Amendments
As IMO continues to address:
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Climate change
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Digitalization
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Automation
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Environmental protection
Tracking treaty status will remain essential for global consistency.
Conclusion: Legal Clarity at the Core of Global Shipping
The Status of Treaties option in the IMO Global Integrated Shipping Information System is a foundational tool for understanding which international maritime rules apply, where, and from when.
By providing authoritative information on the participation of States in IMO conventions and mandatory instruments, the module ensures legal certainty, transparency, and fairness in the global shipping system.
For shipowners, regulators, port authorities, educators, researchers, and students, the GISIS Status of Treaties module is an indispensable reference in navigating the complex but essential framework of international maritime law.
In an industry built on international cooperation, this GISIS module quietly underpins the rule-based order that keeps global shipping safe, clean, and predictable.
