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PSC: White, Grey & Black Lists Explained

Did you know that around 50% of ships inspected by port State control officers have deficiencies? The Paris Memorandum of Understanding (Paris MoU) compiles annual lists known as the White, Grey, and Black lists. These lists rank flag states based on their performance in maritime inspections. The implications are significant, affecting the frequency and thoroughness of inspections, as well as the overall risk profile of vessels.


An artistic illustration of a maritime scene depicting a large ship being inspected by officials on a dock, with a backdrop of various national flags
An artistic illustration of a maritime scene depicting a large ship being inspected by officials on a dock, with a backdrop of various national flags


The Paris MoU list is considered the worldwide index for flag performance. It's calculated using the number of inspections and detentions over a three-year period for flags with at least 30 inspections. Ships flying flags on the black list are more likely to be inspected upon arrival in a port. They also face longer observations of detentions and Prevention of Operations compared to grey-listed ships. Flag state performance directly impacts the operational risks for ship owners, making it essential for flag states to strive for a spot on the white list.


Key Takeaways

  • The Paris MoU publishes annual White, Grey, and Black lists ranking flag state performance in maritime inspections.

  • Around 50% of inspected ships have deficiencies, with a 4% detention rate due to serious issues.

  • Ships flying flags on the black list face increased inspections and scrutiny, impacting their risk profile.

  • Flag states should monitor their fleet's performance and target common areas of deficiencies to improve their ranking.

  • Appearing on the white list is critical for flag states to demonstrate their fulfillment of obligations and reduce operational risks for ship owners.


Introduction to Port State Control

Port State Control (PSC) is a critical system ensuring ships comply with safety regulations, environmental compliance standards, and international conventions. It empowers port authorities to inspect foreign vessels, verifying they meet safety, pollution prevention, and crew standards.


The main goal of Port State Control is to eliminate substandard shipping practices. It aims to prevent accidents, pollution incidents, and loss of life at sea. Through thorough inspections and strict compliance, PSC maintains the safety and integrity of the global maritime industry.


Purpose of Port State Control

Port State Control focuses on several key aspects of maritime safety and environmental protection:

  • Ensuring compliance with international maritime conventions, such as SOLAS, MARPOL, and STCW

  • Identifying and rectifying deficiencies in ship equipment, structure, and operational procedures

  • Verifying the competence and working conditions of the ship's crew

  • Preventing marine pollution and protecting the environment

  • Maintaining a level playing field for the shipping industry by enforcing consistent standards across all vessels


The effectiveness of Port State Control is evident in the statistics. The Paris Memorandum of Understanding (Paris MoU) conducts around 15,000 vessel inspections annually in the European Union. These inspections have significantly reduced substandard ships in the region.


Role of Port State Control Officers (PSCOs)

Port State Control Officers (PSCOs) are the backbone of the PSC system. These highly trained professionals conduct detailed inspections of foreign vessels. Their duties include:

  1. Reviewing ship certificates and documentation

  2. Examining the ship's structural integrity, equipment, and machinery

  3. Assessing the competence and working conditions of the crew

  4. Identifying and reporting deficiencies

  5. Ensuring that deficiencies are rectified before the ship is allowed to depart


PSCOs play a vital role in preventing maritime accidents and incidents. Over 2,000 marine accidents and incidents are reported in EU waters each year. This highlights the importance of their work.


The role of Port State Control Officers is essential in ensuring the safety of life at sea, the prevention of pollution, and the maintenance of decent working and living conditions for seafarers.

PSC Regime

Annual Inspections

Member States

Paris MoU

15,000

22 EU Member States + Russia

Tokyo MoU

14,000

20 Member Authorities

USCG

9,000

United States


Port State Control is a collaborative effort involving regional agreements like the Paris MoU, Tokyo MoU, and the United States Coast Guard (USCG). These organizations harmonize inspection procedures, share information, and maintain consistent maritime safety and environmental protection worldwide.


The White, Grey, and Black Lists

The Paris Memorandum of Understanding (Paris MoU) on Port State Control publishes an annual report. This report includes the White, Grey, and Black Lists. These lists are a risk-based targeting tool for port State control inspections. They offer insights into flag states' performance and their commitment to maritime regulations.


The International Chamber of Shipping (ICS) represents over 80% of the world's merchant fleet. It uses the Flag State Performance Table. This tool encourages shipowners to evaluate flag states based on safety, environmental protection, and seafarers' conditions.


Criteria for List Placement

Flag states are placed on the White, Grey, or Black List based on their technical performance. This performance is calculated from the number of inspections and detentions of their ships over three years. A minimum of 30 inspections is required for inclusion. The lists reflect a flag state's ability to enforce maritime standards and maintain a quality fleet.


In the Paris MoU Annual Report 2020, the distribution of flag states across the three lists was as follows:


List

Number of Flag States

White List

39

Grey List

22

Black List

9


Annual Publication of Lists by Paris MoU

The Paris MoU annual report includes detailed statistics on port State control for the previous year. It contains the White, Grey, and Black Lists. The report promotes transparency and accountability, helping the maritime industry evaluate flag states' performance.


A fleet of ships featuring weathered hulls
A fleet of ships featuring weathered hulls

Ships flying the flag of a state on the Black List are considered high-risk. They are more likely to face inspections and bans. Grey-listed ships may also face increased scrutiny, with more than two detentions or Prevention of Operations within the previous 24 months leading to a ban.


Being on the White List indicates a flag state is fulfilling its obligations. It's an attractive choice for shipowners looking to minimize risks of delays and inspections.

Flag State Performance and the Lists

Flag state responsibility is key in determining a country's standing on the White, Grey, and Black Lists by the Paris MoU. These lists are a global benchmark for flag state performance in adhering to international maritime regulations and IMO conventions.


The Flag State Performance Table, updated as of January 2021, uses a color-coded system. Green squares indicate positive performance, while red squares suggest potentially negative performance. Flags not on Port State Control (PSC) 'white lists' face more inspections. They must have had at least one inspection in the last three years to be included.


To qualify for the USCG Qualship 21 program, a flag must have had at least three distinct arrivals in each of the last three years. Flags not in this program do not receive red squares. It's important to note that older tonnage under a flag does not always mean substandard quality. The table highlights flags with the lowest average fleet age.


Meeting reporting requirements, like ILO obligations, is seen as a positive sign of flag state performance. The USCG's 2019 PSC report showed various deficiencies, including:

  • 83 safety management system deficiencies (29% related to ship and equipment maintenance)

  • 74 fire safety issues (over 25% attributed to oil accumulation in engine rooms)

  • 60 environmental infractions under MARPOL Annex I (nearly one-third due to non-compliant oil filtering equipment)

  • Access control and ship security plans as the most common security infractions leading to major control actions


The three-year detention ratio for the USCG in 2019 was 1.08%. India, Turkey, and Cyprus were removed from the USCG targeted flag list. Israel (detention ratio of 15.79%) and Belgium (2.82%) were added for the first time. By the end of 2019, 2,936 ships and 25 flag states had qualified for the USCG's Qualship21 program, showing their commitment to compliance and international standards.


Only 51 ships met the criteria for the USCG's E-Zero programme, an initiative recognizing exemplary vessels for consistent environmental compliance and stewardship.

Flag states must prioritize their responsibilities. They must ensure ships flying their flags adhere to the highest international standards. This is to secure a spot on the coveted White List and avoid the scrutiny and consequences of being on the Grey or Black Lists.


Impact on Flag States and Ships

The Paris Memorandum of Understanding (Paris MoU) can severely impact flag states placed on the grey or black list. Ships under these flags face more inspections and scrutiny from Port State Control officers. This can lead to delays and financial losses for ship owners and operators.


Ships with black-listed flags are seen as high-risk. They must notify the Maritime and Coastguard Agency 72 hours before arriving in a UK port. This requirement can disrupt shipping schedules and pose logistical challenges for operators.


Consequences for Ships on Grey and Black Lists

The effects on ships registered under flag states on the grey and black lists are significant. Here are some statistics:


Memorandum of Understanding

Inspections (2015)

Detentions (2015)

Bans (2015)

Paris MoU

17,858

595

11

Tokyo MoU

17,269

1,153

N/A


Ships on the black list are more likely to face bans due to longer detention and Prevention of Operations (PoOs) periods. This can severely impact a ship's ability to operate and generate revenue for its owners.


Increased Inspections and Scrutiny

Flag states on the grey and black lists face more inspections and scrutiny. This increased attention can lead to more deficiencies being found. This can result in detentions and financial losses for ship owners and operators.


In 2015, member states of the Tokyo Memorandum of Understanding conducted 17,269 ship inspections, resulting in 1,153 detentions due to 83,606 deficiencies found.

The heightened scrutiny for ships under flag states on the grey and black lists has significant consequences for the maritime industry. Ship owners might reflag their vessels to white-listed states to avoid these risks and costs.


Importance of Appearing on the White List

Securing a spot on the White list is a major goal for flag states. It shows they meet their duties to ensure their ships follow international community standards. The Paris MOU and Tokyo MOU, known for their efficient ship selection, use the "Black, Grey, and White List" (BGW list) to rate flag states.


Flag states on the White list show they're serious about maritime safety and environmental protection. Their success comes from strict enforcement of global rules and proactive actions by their administrations.


Indicators of Flag State Fulfillment of Obligations

Several factors help a flag state get on the White list:

  • Low deficiency and detention rates during Port State Control inspections

  • Prompt fixing of identified issues

  • Regular updates to national laws to match international changes

  • Effective management of Recognized Organizations (ROs) for surveys and certifications

  • Strong flag state inspection to check fleet performance


Benefits for Ship Owners

Ship owners with White-listed flags get many benefits. These ships face fewer inspections, leading to less delay and disruption. This results in better efficiency and cost savings.


Also, ships with White-listed flags are seen more positively by charterers, insurers, and lenders. This can mean better charter rates, lower insurance costs, and better financing options.


Flag State Performance

Inspection Frequency

Operational Impact

White List

Low

Minimal disruptions

Grey List

Medium

Increased inspections

Black List

High

Significant delays and costs


In summary, being on the White list proves a flag state's dedication to global standards and fleet safety. Ship owners gain from better operational efficiency and a positive reputation with White-listed flags.


Monitoring Fleet Performance by Flag States

Flag states are key to ensuring the safety and adherence to regulations of their vessels. To stay on the Paris MoU white list, they must closely monitor their fleet. This involves regular inspections and targeting common problem areas. Effective flag state monitoring is critical for spotting and fixing issues before they cause detentions or accidents.


Conducting Flag State Inspections

Flag state inspections are essential for evaluating a ship's condition and compliance. These are conducted by experienced surveyors who check the vessel's structure, equipment, and operations. The inspection's frequency and depth depend on the ship's age, type, and past performance. Yet, regular checks are necessary to uphold international standards and safety levels.


A large cargo ship docked at a busy port, showing visible signs of wear and tear, with rust patches and faded paint; inspectors in safety vests examining the ship closely
A large cargo ship docked at a busy port, showing visible signs of wear and tear, with rust patches and faded paint; inspectors in safety vests examining the ship closely

Targeting Common Areas of Deficiencies

To enhance their fleet's performance and lower detention risks, flag states must focus on common problem areas. Smaller and older ships often face more issues, mainly due to inadequate maintenance and ISM Code non-compliance.

Flag states should concentrate on key areas during inspections and offer guidance to ship owners:

  • Fire safety equipment and procedures

  • Life-saving appliances and arrangements

  • Safety of navigation

  • Structural conditions

  • Living and working conditions

  • ISM Code compliance


By focusing on these critical areas and ensuring high safety and compliance standards, flag states can decrease deficiencies and detentions. This will improve their overall performance and standing on the Paris MoU lists.


Role of Recognized Organizations (ROs)

Flag states are key in ensuring the safety and compliance of their registered vessels. Due to the large number of ships and complex maritime regulations, most flag states outsource statutory surveys to recognized organisations (ROs). These ROs, often classification societies, are authorized to conduct surveys, issue certificates, and ensure ships meet international standards.


Delegating statutory surveys to ROs helps flag states manage their responsibilities efficiently. ROs carry out detailed inspections, identify issues, and verify compliance with conventions like SOLAS, MARPOL, and STCW. This allows flag states to focus on management and enforcement.


Delegation of Statutory Surveys to ROs

The degree of delegation varies among flag states. Typically, it includes surveys on safety construction, safety equipment, load lines, and pollution prevention. ROs need the right expertise, resources, and global reach to perform these surveys well. They must follow strict standards and guidelines from the flag state and international bodies like the International Maritime Organization (IMO).


Monitoring RO Performance by Flag States

Flag states must closely monitor RO performance to ensure effective surveys. The Paris MoU, for example, has a performance listing for ROs. It calculates their performance based on detentions related to statutory surveys. Flag states should regularly review RO performance, analyze data, and take action when needed.


Regional PSC Regime

Number of ROs Assessed

Performance Monitoring System

Paris MoU

12

RO Performance List

Tokyo MoU

10

Annual RO Performance Review

USCG PSC Program

8

Targeted Oversight Program


Monitoring RO performance is critical to identify areas for improvement and address recurring issues. Flag states should maintain open communication with ROs, conduct regular audits, and provide feedback. This ensures surveys and certifications meet high standards.


By delegating statutory surveys and monitoring RO performance, flag states can fulfill their responsibilities. They maintain the safety and compliance of their fleet. This effort helps eliminate substandard shipping practices globally.


Deficiencies and Detentions

Ship deficiencies are a common issue during Port State Control inspections, leading to serious consequences. The Paris MoU reports that about 50% of ships inspected by BG Verkehr in German ports have deficiencies. These can range from minor to major, requiring immediate rectification to ensure safety and environmental protection.


Prevalence of Deficiencies in Inspected Ships

The prevalence of deficiencies varies by ship age, size, and flag state. Smaller, older vessels are more likely to have issues due to poor maintenance and non-compliance. The Paris MoU maintains worldwide flag performance lists, categorizing flags as Black, Grey, or White based on inspections and detentions.


Consequences of Serious Deficiencies

Major deficiencies can lead to ship detention until issues are resolved. Around 4% of inspected ships face detention due to serious deficiencies. Ships with black-listed flags are more likely to be detained or banned.


Detention consequences extend beyond the immediate issue. Detentions can lead to flag states being placed on Grey or Black lists, increasing scrutiny. To avoid this, flag states aim for the White list by ensuring ships meet international standards and maintain safety.


"Serious deficiencies found during PSC inspections can result in the immediate detention of the ship until the issues are rectified, which can be costly and time-consuming for the ship owner and operator."

Recognized Organizations (ROs) play a key role in preventing deficiencies. They conduct surveys on behalf of flag states and are evaluated for detentions. In 2020, 37 out of 369 detentions were RO-related, a decrease from 2019.


Flag State

Inspections

Detentions

Excess Factor

France

552

0

-2.13

Denmark

441

1

-1.70

Norway

434

3

-0.91


By monitoring fleet performance and conducting inspections, flag states and ROs can reduce deficiencies. This ensures safer seas for all.


Ranking of Flag States and Classification Societies

The performance of flag states and classification societies is key in setting inspection targets for ships under Port State Control (PSC). The International Chamber of Shipping (ICS) covers over 80% of the world's merchant fleet. It publishes the Flag State Performance Table to evaluate flag state performance. The 2024 version is based on data up to January 2024.


Flag states not on PSC white lists face more inspections. The table shows flags with no detentions in three years but missed minimum inspections. Meeting major maritime treaty ratifications and the IMO Code for Recognized Organizations (RO Code) are critical.


Fleet age is analyzed to rank flags. The table lists the 90% of flags with the lowest average fleet age. Compliance with IMO and ILO reporting and IMO meeting attendance are also considered.


Flag State

Tokyo MOU Risk Category

Inspection Targeting

Bahamas

White List

Low

China

White List

Low

Denmark

White List

Low

Greece

White List

Low

Japan

White List

Low

Liberia

White List

Low

Panama

White List

Low

Singapore

White List

Low


From July 2024 to June 2025, the Tokyo MOU identifies Bahamas, China, Denmark, Greece, Japan, Liberia, Panama, and Singapore as low-risk. These flags are on the white list, leading to fewer inspections. Flags not meeting 30 inspections in three years are removed from the list, even after an IMO audit.


Classification society rankings also affect inspection frequency. High-performing ROs like ABS, BV, DNV AS, LR, and RINA have ships inspected less often than those classed by lower-ranking societies.


The Tokyo MOU sets the Detention Index at 3.29 and the Deficiency Index at 2.24 for company performance until June 2025. These indices, along with flag and classification society rankings, guide PSC in setting inspection targets.


Conclusion

Port State Control (PSC) is vital for maritime safety and regulatory compliance in the shipping world. The White, Grey, and Black lists are key tools for PSC authorities. They help focus inspections and push flag states and shipping companies to meet high standards. Flag states aiming for the White list show their dedication to international conventions. Ship owners benefit from fewer inspections and a better reputation.


The PSC system has shown its worth by boosting safety and cutting incidents over the years. This is seen in the success of major MoUs like the Paris and Tokyo MoUs. Yet, there are ongoing issues, like uneven PSC development worldwide and unqualified officers in some areas. A study in the Cambridge Journal emphasizes the need for PSC to better tackle substandard ships globally.


The maritime sector's growth underlines the critical role of PSC in safety and environmental protection. Flag states and shipping companies must collaborate to tackle weaknesses, invest in crew training, and foster a culture of ongoing improvement. By focusing on safety and compliance, the industry can secure a sustainable and prosperous future for all involved in global shipping.


FAQ

What is Port State Control (PSC)?

Port State Control (PSC) is a vital mechanism ensuring ships adhere to global maritime safety and environmental standards. It involves inspections by Port State Control Officers (PSCOs) in ports worldwide.


What are the White, Grey, and Black lists in the context of PSC?

The White, Grey, and Black lists are annual publications in the Paris MoU Annual Report. They rank flag states based on inspections and detentions over three years. These lists help target PSC inspections based on risk.


How are flag states ranked on the White, Grey, and Black lists?

Flag states are ranked by their technical performance, considering inspections and detentions over three years. The White list honors the best performers, while the Grey and Black lists indicate lower standards.


What are the consequences for ships registered under Grey or Black-listed flags?

Ships under Grey or Black-listed flags face heightened scrutiny and more inspections. Black-listed ships must notify authorities before port entry and risk being banned from certain areas.


Why is it important for flag states to appear on the White list?

Being on the White list is a significant achievement for flag states, showing they meet international standards. Ship owners benefit from registering with White-listed flags, avoiding operational issues and increased inspections.


How can flag states improve their performance and ranking on the lists?

Flag states can enhance their standing by conducting regular inspections and targeting common detention causes. Monitoring Recognized Organizations (ROs) is also essential to ensure they fulfill their responsibilities.


What is the role of Recognized Organizations (ROs) in the PSC system?

Recognized Organizations (ROs) handle statutory surveys for most flag states. The Paris MoU evaluates RO performance based on detentions related to their surveys. Flag states must monitor ROs to guarantee their duties are met.


What happens when serious deficiencies are found during a PSC inspection?

Major deficiencies found during inspections must be fixed immediately. In about 4% of cases, ships are detained until the issues are resolved due to severe problems.


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