Ship Arrest in Greece 2026: Precautionary Arrest, Security & Enforcement for Arbitration

Ship arrest in Greece remains one of the most potent tools available to maritime creditors seeking to secure claims before, during or after arbitration, and the landscape shifted meaningfully when Law 5016/2023 (ΦΕΚ Α’ 21, published 4 February 2023) broadened the presumption of arbitrability and clarified Greek courts’ power to grant interim measures in support of both domestic and foreign-seated arbitral proceedings. For shipowners, charterers, P&I clubs, cargo insurers and in-house counsel, the practical question is immediate: when should you arrest a vessel in a Greek port to protect an arbitration claim, and what exact evidence, filings and counter-security must you prepare to obtain, or lift, that arrest?

This guide, last reviewed on 10 May 2026, delivers the step-by-step operational playbook that practitioners in Piraeus and beyond need right now.

Executive Summary and Decision Checklist for Ship Arrest in Greece

Before diving into the procedural detail, practitioners should work through three priority decision points within the first 24–48 hours of identifying a potential arrest target in a Greek port.

Priority 1, Confirm your maritime claim type. Greek law restricts precautionary arrest to claims that qualify as “maritime claims” under the 1952 International Convention Relating to the Arrest of Sea-Going Ships (the Brussels Arrest Convention), to which Greece is a contracting state. Verify that your claim falls within the Convention’s enumerated categories, unpaid freight, bunker supply debts, collision damage, crew wages, salvage, mortgage enforcement and similar, before instructing local counsel.

Priority 2, Assemble your evidence immediately. The arresting party must present a prima facie case through supporting documents. Gather charter party extracts, invoices, bunker delivery notes, bills of lading, correspondence evidencing the dispute, and vessel-tracking data confirming the ship’s presence (or expected arrival) in a Greek port. Delays in evidence preparation are the single most common reason for missed arrest windows.

Priority 3, Prepare your counter-security position. If you are on the defending side, or if you anticipate a prompt release negotiation, decide in advance whether to offer a Greek bank guarantee, a P&I club letter of undertaking, or a cash deposit. Knowing the typical calculation methodology (principal + interest + costs + margin) will accelerate negotiations and avoid unnecessary demurrage exposure.

The checklist below condenses these priorities into an actionable 24-hour sequence that claims handlers can follow from the moment a vessel is identified at a Greek berth.

24-Hour Operational Checklist

1. Identify the vessel’s flag, registered owner and bareboat charterer; confirm vessel position via AIS or port agent.
2. Classify the maritime claim under the 1952 Arrest Convention categories.
3. Compile all supporting documentation (contracts, invoices, delivery receipts, correspondence).
4. Instruct Greek admiralty counsel in the relevant port (Piraeus, Thessaloniki or the island court with jurisdiction).
5. Prepare and file the summary petition for precautionary arrest before the competent single-member court.
6. Coordinate with the port authority and harbour master for service and physical detention of the vessel.
7. Open a parallel line of communication on counter-security with the opposing party’s P&I club or lawyers.

Legal Framework: Conventions, Greek Law and Law 5016/2023

The legal architecture governing ship arrest in Greece rests on three pillars: an international convention, the Greek Code of Civil Procedure, and the recently enacted arbitration reform law. Understanding how these instruments interact is essential for any party seeking, or resisting, precautionary arrest in a Greek port.

Key Statutes and Articles

• 1952 Brussels Arrest Convention. Greece ratified the International Convention Relating to the Arrest of Sea-Going Ships (signed 10 May 1952) and has not acceded to the 1999 Arrest Convention. The 1952 Convention therefore remains the controlling instrument. It defines the categories of maritime claim that permit arrest and limits arrest to the “particular ship” in respect of which the claim arose, with a narrow exception for sister-ship arrests.
• Greek Code of Civil Procedure (CPC), Articles 682–703. These provisions govern provisional (precautionary) measures, including the arrest of assets. A claimant must demonstrate a prima facie claim and a real risk that enforcement will be frustrated absent the measure. Ship arrests are treated as a species of precautionary measure under these articles.
• Law 5016/2023 on International Commercial Arbitration (ΦΕΚ Α’ 21, 4 February 2023). This landmark statute modernises the Greek international arbitration framework. Article 3(4) introduces a rebuttable presumption that disputes are arbitrable unless a specific statutory provision dictates otherwise, broadening the scope of matters that can be submitted to arbitration. Critically, the law clarifies that the existence of an arbitration agreement does not bar Greek courts from ordering provisional measures, including ship arrests, before or during arbitral proceedings.

Timeline of Key Legislative Dates

Industry observers expect the trend of Greek courts granting arrests in support of arbitration to accelerate through 2026 and beyond, as practitioners gain confidence in the Law 5016/2023 framework and more decisions are reported.

Precautionary Arrest Procedure in Greece: Step-by-Step

The arrest procedure in Greece is designed to be swift, in urgent cases, the entire cycle from filing to physical detention of a vessel can be completed within 24 hours in Piraeus, provided the papers are in order. Below is the standard workflow that applies to maritime creditors seeking a precautionary arrest.

Step 1, Identify the competent court. Arrest applications are filed before the single-member First Instance Court at the port where the vessel is located or expected to arrive. In practice, the vast majority of maritime arrests are handled by the Piraeus courts, reflecting the port’s dominance in Greek shipping. Thessaloniki and certain island courts also have jurisdiction where vessels call at those locations.

Step 2, Prepare and file the summary petition. The claimant (or their Greek-qualified counsel) files a petition for provisional measures under Articles 682–703 of the Code of Civil Procedure. The petition must set out the nature of the maritime claim, the factual basis and the urgency that justifies arrest. It is typically accompanied by an affidavit or sworn statement and all supporting documentation. Greek language is required for court filings; certified translations of foreign-language evidence must be prepared in advance.

Step 3, Demonstrate urgency and risk of dissipation. The court will assess whether there is a credible risk that the claimant’s ability to enforce a future judgment or arbitral award will be frustrated if the vessel is permitted to leave. Factors that strengthen urgency include evidence that the vessel is about to depart, that the shipowner has a pattern of evading claims, or that the vessel is the sole enforceable asset.

Step 4, Obtain the arrest order and serve it. If the court is satisfied, it issues an arrest order, which must then be served on the vessel’s master and communicated to the harbour master. The harbour master physically prevents the vessel from sailing by refusing port-clearance documentation. Coordination between counsel, the port authority and potentially the coast guard is critical, especially when arrest must be executed outside regular court hours.

Step 5, Notify the flag state and relevant registries. While not always a statutory requirement, best practice is to notify the vessel’s flag state registry, the P&I club and the ship’s mortgagees of the arrest, particularly where the claim involves mortgage enforcement or competing creditor priorities.

Evidence Checklist for Ship Arrest in Greece

Practitioners should assemble the following documentation before instructing local counsel:

• Charter party or contract of affreightment. Signed originals or certified copies, with relevant clauses highlighted (especially arbitration, jurisdiction and law clauses).
• Invoices, statements of account and bunker delivery notes. Essential for bunker arrest in Greece and unpaid-freight claims, provide a clear paper trail of the debt.
• Bills of lading and cargo documentation. For cargo-damage and cargo-shortage claims, include survey reports and cargo outturn records.
• Vessel-tracking evidence. AIS printouts, port agent confirmations or Lloyd’s List intelligence confirming the vessel’s presence (or imminent arrival) at a Greek port.
• Correspondence and demand letters. Evidence of pre-arrest demands and the respondent’s failure to pay or provide security.
• Crew statements (if relevant). For crew-wage claims or personal-injury matters, signed statements and employment contracts.
• Corporate and ownership evidence. Current extracts from the vessel’s flag-state registry, confirming the registered owner and any bareboat charter registrations.

Sister-Ship Arrests: Requirements and Limits

Under the 1952 Arrest Convention, a claimant may in limited circumstances arrest a vessel other than the one in respect of which the claim arose, provided both vessels are beneficially owned by the same entity at the time of arrest. Greek courts interpret the sister-ship arrest provisions narrowly. The claimant must demonstrate that the registered owner (or, in some cases, the demise charterer) of the target vessel is the same party against whom the underlying maritime claim lies. Corporate-veil arguments and group-structure claims face significant evidential hurdles. Practitioners should obtain current ownership evidence from classification society databases and flag-state registries before attempting a sister-ship arrest in Greece.

Security to Lift a Ship Arrest: Types, Calculation and Sample Guarantee

Once a vessel is arrested, the shipowner’s immediate priority is lifting the arrest by providing adequate counter-security. Greek courts accept several forms of security, but the acceptability and speed of each varies significantly in practice. Understanding how courts assess adequacy, and knowing the standard calculation methodology, is essential for both the arresting and arrested parties.

Acceptable Forms of Counter-Security

How Courts Assess Adequacy of Security

Greek courts typically require that the counter-security cover the full amount of the claim (principal), plus estimated interest to the date of expected judgment or award, legal costs and a margin (often 10–30% above principal) to account for contingencies. The precise margin varies based on the complexity and quantum of the underlying claim. Courts will scrutinise the wording of bank guarantees to ensure they are unconditional, irrevocable and payable on first written demand, conditional or time-limited guarantees are routinely rejected.

The standard formula in practice is:

Counter-security amount = Principal claim + Estimated interest + Anticipated legal costs + Margin (typically 10–30%)

For a bunker supply claim of USD 500,000, for example, the court might require a bank guarantee in the range of USD 600,000–650,000 to account for interest, costs and margin. The arresting party often seeks to negotiate the exact figure before the court hearing, which can expedite the release process.

A sample bank guarantee clause acceptable in Greek practice typically reads:

“We, [Bank Name], hereby irrevocably and unconditionally guarantee payment on first written demand, without any objection or defence, of any sum up to [Amount] in favour of [Claimant], in connection with the arrest of M/V [Vessel Name] by order of the [Court], dated [Date], reference [Case Number].”

Ship Arrest in Support of Arbitration: Law 5016/2023 and Current Practice

The intersection of precautionary arrest and arbitration is where Greek maritime practice has evolved most significantly since 2023. Law 5016/2023 resolved several long-standing uncertainties and established Greece as a jurisdiction where arrest in support of arbitration is both legally permissible and practically effective.

The core principle: An arbitration agreement, whether providing for a Greek or foreign seat, does not deprive Greek courts of jurisdiction to order provisional measures, including ship arrests. Article 3(4) of Law 5016/2023 creates a rebuttable presumption that disputes are arbitrable unless a specific statutory provision expressly excludes arbitration. This means that a Greek court, when presented with an arrest application in respect of a claim subject to arbitration, will not decline jurisdiction merely because the parties have agreed to arbitrate.

Arrest to Secure an Arbitration Award vs. Arrest as an Interim Remedy

Practitioners must distinguish between two fundamentally different tactical uses of arrest in the arbitration context:

• Arrest to secure future award enforcement. The claimant obtains a precautionary arrest to prevent the vessel (and thus the respondent’s principal asset) from leaving the jurisdiction before an arbitral award can be enforced. This is the more common scenario: the arrest preserves assets against which the eventual award may be executed. The claimant must show a prima facie case, urgency and a real risk of asset dissipation.
• Arrest as an interim measure ordered by the tribunal or court. In some cases, the arbitral tribunal itself may order interim measures under its procedural rules (for instance, under ICC or LMAA rules). However, because arbitral tribunals lack coercive enforcement powers, the claimant will still need to apply to the Greek court for enforcement of the tribunal’s interim order, or apply independently for precautionary arrest under the Code of Civil Procedure. Greek courts treat both avenues as permissible after Law 5016/2023.

Foreign-seated arbitrations. The question of whether Greek courts will grant arrests to support arbitrations seated outside Greece has attracted significant practitioner attention since 2023. The likely practical effect of Law 5016/2023, as interpreted by commentators and reflected in recent court practice, is that Greek courts will exercise their provisional-measures jurisdiction regardless of the seat of arbitration, provided the vessel is within Greek territorial jurisdiction and the statutory requirements for arrest are met. Early indications suggest that Piraeus courts have been receptive to such applications in the 2024–2026 period, particularly where the claimant can demonstrate that no equivalent interim remedy is available from the arbitral tribunal or the courts at the seat.

What must the claimant show? When seeking arrest in support of arbitration, the filing must establish:

1. The existence of a valid arbitration agreement covering the dispute.
2. A prima facie maritime claim falling within the 1952 Arrest Convention categories.
3. Urgency, a genuine risk that the vessel will depart and enforcement will be frustrated.
4. Proportionality, the arrest does not exceed what is necessary to secure the claim.

The court will not assess the merits of the underlying arbitration in any depth; the threshold remains a summary, prima facie evaluation. This is consistent with the well-established Greek approach to provisional measures under Articles 682–703 of the Code of Civil Procedure.

For practitioners pursuing or defending arrests that interact with arbitration proceedings, the reforms under Law 5016/2023 represent a significant expansion of strategic options. Whether enforcing arbitral awards in Greece or seeking pre-award security, the arrest mechanism is now firmly embedded in the arbitration support toolkit.

Challenging a Ship Arrest: Grounds, Timelines and Remedies

Not every arrest will survive judicial scrutiny. The arrested party has several avenues to challenge the measure, and understanding the available grounds, and the associated timelines, is critical to an effective defence strategy.

Grounds for Challenging an Arrest

• No valid maritime claim. The most fundamental ground: the underlying claim does not fall within the enumerated categories of the 1952 Arrest Convention or does not constitute a maritime claim under Greek law.
• Inadequate prima facie case. The claimant’s evidence fails to establish even a provisional case on the merits, for instance, the documents are inconsistent, forged or relate to a different vessel.
• No urgency or risk of dissipation. The shipowner can demonstrate that the vessel regularly trades in and out of Greece, that the owner has substantial assets available for enforcement, or that adequate security has already been provided elsewhere.
• Technical or procedural defects. Errors in the petition (wrong respondent, incorrect vessel identification, service failures) may render the arrest invalid.
• Disproportionality. The arrest is excessive relative to the quantum of the claim, for example, arresting a VLCC over a minor bunker dispute.

Procedure and Timelines for Filing a Challenge

The arrested party may file a motion to vacate the arrest order before the same court that granted it. Greek procedural law provides for an expedited hearing on such motions, and courts in Piraeus routinely schedule these within a few days of filing. Alternatively, the arrested party may offer substitute security (as described above) and apply for release of the vessel, which the court will grant if the security is deemed adequate.

Wrongful arrest claims. Where an arrest is obtained without legitimate grounds, particularly where the arresting party acted in bad faith or with gross negligence, the shipowner may pursue a claim for damages arising from the wrongful arrest. Recoverable losses typically include loss of hire, port costs, additional crew expenses and legal fees. Greek courts have historically set a high threshold for wrongful-arrest liability, generally requiring proof that the arrest was pursued recklessly or with knowledge that the underlying claim had no foundation.

Practical Checklists, Sample Pleadings and Forms

Effective execution of a ship arrest in Greece depends as much on operational preparation as on legal analysis. The checklists and sample documents below are designed to be used as working tools by claims handlers and legal teams.

24-Hour Operational Checklist (Expanded)

1. Hours 0–4: Confirm vessel identity, flag, registered owner and beneficial owner. Obtain current AIS position. Contact Greek admiralty counsel at the relevant port.
2. Hours 4–8: Transmit all supporting documentation to counsel. Instruct certified translation of key foreign-language documents into Greek.
3. Hours 8–12: Counsel drafts the summary petition and supporting affidavit. Review and approve the draft.
4. Hours 12–18: File the petition with the competent single-member court. If outside regular hours, arrange for urgent/weekend filing (available in Piraeus for genuinely urgent matters).
5. Hours 18–24: Obtain the arrest order. Serve on the vessel’s master via process server and notify the harbour master. Confirm physical detention (vessel unable to obtain port clearance).

Sample Petition Checklist

The petition filed with the court should include, at minimum:

• Full identification of the claimant and respondent (registered owner or demise charterer).
• Description of the vessel (name, IMO number, flag, gross tonnage, current location).
• Nature and quantum of the maritime claim, with supporting evidence referenced.
• Legal basis: reference to 1952 Arrest Convention claim categories and CPC Articles 682–703.
• Statement of urgency and risk of dissipation.
• If the claim is subject to arbitration: reference to the arbitration clause and confirmation that the arrest is sought as a provisional measure to secure the claim (citing Law 5016/2023).
• Requested relief: order for precautionary arrest of the vessel until adequate security is posted.

Suggested Language for “Arrest in Support of Arbitration” Filings

Where the underlying dispute is subject to arbitration, the petition should include a specific paragraph addressing the court’s jurisdiction to grant interim measures notwithstanding the arbitration agreement. A model clause reads:

“The applicant respectfully submits that the existence of the arbitration clause in the [Charter Party / Contract] dated [Date] does not deprive this Court of jurisdiction to order provisional measures pursuant to Articles 682–703 of the Code of Civil Procedure. Pursuant to Law 5016/2023 (ΦΕΚ Α’ 21, 4 February 2023), disputes of a commercial nature are presumed to be arbitrable, and the Court retains its power to order interim measures in support of arbitral proceedings, whether seated in Greece or abroad.”

Conclusion: Strategic Use of Ship Arrest in Greece for 2026 and Beyond

Ship arrest in Greece is a fast, well-established and increasingly arbitration-friendly enforcement mechanism. The reforms introduced by Law 5016/2023 have removed key uncertainties around the interplay between arbitration agreements and court-ordered provisional measures, making Greece a more attractive forum for creditors seeking to secure maritime claims. Practitioners who prepare their evidence early, engage local admiralty counsel promptly and understand the court’s expectations around counter-security will be well placed to execute, or defend against, arrests efficiently. For those navigating these waters, the operational checklists and procedural guidance in this article are designed to be actionable from day one. Qualified Greek admiralty lawyers can provide the jurisdiction-specific counsel required for urgent arrest matters.

Sources

1. Law 5016/2023, Official Consolidated Text (Kodiko.gr)
2. Unofficial English Translation of Law 5016/2023 (International Arbitration Attorney)
3. Kluwer Arbitration Blog, Greece’s New Law on International Commercial Arbitration
4. ShipArrested, Ship Arrest in Greece (Jurisdiction Note)
5. E-Nomothesia, Law 5016/2023 (Greek Code Provisions)
6. CML/CMI Database, Grandest Shipping Co Ltd v Agios Nikolaos
7. Seafarers’ Rights, Arrest for Seafarers’ Wages in Greece