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Nadya joined Patton, Moreno & Asvat in 1999 as a legal assistant in the Shipping Department, liaising with the Panama Directorate General of Merchant Marine for vessel documentation. Admitted to the National Bar Association in 2003, she became an associate attorney, advising on the registration of Panamanian-flagged vessels and compliance with maritime safety conventions.
In 2006, she was appointed Associate and Resident Attorney in the firm’s London office, where she gained expertise in ship finance by advising on international sale and purchase transactions and managing vessel registrations under the Panamanian flag. In 2015, she returned to Panama to continue her practice in cross-border matters, including drafting and reviewing loan agreements and ship mortgages governed by Panamanian law.
Since 2018, Nadya has been a partner at Patton, Moreno & Asvat, focusing on ship finance, international financings, project development, mergers and acquisitions, and transactions in the logistics and energy sectors.
For more than a century, Panama has stood at the crossroads of world trade, leveraging both its unique geographic position and the Panama Canal to become a global maritime hub. The Republic of Panama has built its reputation not only as the home of the world’s largest ship registry, but also as a dynamic logistics centre, connecting the Atlantic and Pacific oceans through one of the most strategic waterways on the planet. Over time, Panama has complemented its canal operations with an open and flexible ship registry, attracting shipowners and financiers from all continents by offering legal certainty, fiscal incentives, and efficient procedures tailored to the needs of international shipping.
Today, Panama’s maritime industry extends far beyond the Canal itself. The country has positioned itself as a comprehensive logistics platform, hosting bunkering services, port terminals, ship repair facilities, and a sophisticated ecosystem of legal, financial, and technical advisers that support maritime commerce. The combination of its registry, logistics capabilities, and international connectivity places Panama at the heart of global shipping, where developments in regulation, finance, and technology resonate across the industry. It is within this broader context that the latest legal and regulatory changes in Panama’s maritime sector must be understood.
As recent legal and regulatory reforms demonstrate, Panama is determined not only to maintain its status as the largest open registry, but also to strengthen its position as a trusted, modern, and forward-looking hub for the global shipping industry.
Panama — which continues to host one of the world’s largest ship registries — has taken decisive steps during 2023–2025 to tighten entry controls, enhance ownership transparency, adopt key IMO technical and environmental instruments, and digitise registry processes. Central to these reforms is the Panama Flag Pre-Check, a procedure that formalises a pre-registration risk assessment of each vessel, its owner, and its operator. At the same time, Panama has enforced compliance with the Ballast Water Management (BWM) D-2 standard and adopted IMO carbon-intensity measures. Collectively, these initiatives — reinforced by an unprecedented program of targeted de-registrations of non-compliant vessels — are reshaping the legal framework for ownership transfers, mortgage registrations, due diligence, insurance, and lending involving Panama-flagged ships. For financiers, this proactive enforcement posture enhances the integrity and reliability of the Panamanian registry, providing greater assurance that vessels under its flag comply with international sanctions and industry best practices. In turn, it creates opportunities to structure transactions with stronger collateral security, improved risk visibility, and greater confidence in asset value.
Panama’s registry remains a cornerstone of global ship finance: mortgages over Panama-registered vessels are commonly used as cross-border security, Panamanian law and registration practice are well understood by banks, trustees, and insurers. That position now sits inside a more interventionist regulatory environment. Panama’s recent instruments are designed to pre-empt reputational and regulatory risk (including sanctions and so-called “shadow fleet” activity) and to align domestic practice with IMO obligations and port-state expectations. For ship finance, the two practical consequences are (i) stronger protection and predictability for compliant assets; and (ii) clearer procedures and earlier visibility of requirements for parties buying, financing, or insuring vessels that are to be reflagged or re-registered into Panama, enabling transactions to be structured with greater confidence and efficiency.
The Panama Maritime Authority (AMP) has pursued significant reforms to modernise registry procedures, enhance compliance, and align Panamanian practice with international standards. The most prominent has been the launch of the Panama Flag Pre- Check, a mandatory eligibility review before registration, ownership change, or charterer substitution. Together with tightened technical requirements and transparency obligations, these reforms represent a shift towards a higher-quality registry with greater reputational resilience.
1.Entered into Force of Beijing Convention
Panama’s recent approval of the Beijing Convention on the Judicial Sale of Ships represents a significant step toward strengthening legal certainty in maritime finance. By ensuring that judicial sales conducted under the Convention produce internationally recognized clean titles, financiers gain greater protection for their security interests and enhanced enforceability across jurisdictions. This development reinforces Panama’s position as a reliable and creditor-friendly maritime hub, reducing enforcement risks and increasing confidence in cross-border ship financing.
2.The Panama Flag Pre-Check
The AMP’s Merchant Marine Notice MMN-11/2024, “Panama Flag Pre-Check Process”, requires a pre-check before the enrolment of a vessel under the Panamanian flag or a change of ownership of an already registered vessel which must be requested on behalf of the owner or buyer by a Panamanian law firm or by the Panamanian Consulate chose by the interested party.
The Pre-Check process entails a comprehensive review of the vessel, its owner, operator, and/or charterer before entry into the Panama Ship Registry. Its purpose is to confirm that vessels meet international standards on safety, environmental protection, and crew welfare, while also encouraging cooperation and best practices across the maritime industry. Through this mechanism, the General Directorate of Merchant Marine ensures compliance with national and international regulations, in accordance with the provisions of Law 57 of 2008, as amended by Law 27 of 2014 (the “Maritime Commerce Law”).
The required information to apply for the Pre-Check includes:
3.Technical Standards and Vessel age restrictions
Panama has significantly intensified its technical requirements for vessels seeking admission into its registry, reflecting a broader strategy to improve quality, safety, and environmental performance.
Oil tankers and bulk carriers over 15 years old are no longer accepted for registration. This measure ensures that only younger, more efficient, and technically reliable vessels operate under the Panama flag.
This policy is designed to raise the overall quality of the Panama fleet. By excluding older, higher-risk vessels and enforcing robust international standards, Panama reduces detention rates, enhances port-state control performance, and strengthens its reputation as a responsible flag state. This positions Panama as a registry associated with quality rather than volume, improving its attractiveness to reputable owners and charterers.
4.Sanctions, “Shadow Fleet,” and Flag Transparency
In recent years, Panama has taken decisive measures to safeguard the integrity of its registry and strengthen its standing as a high-quality flag state.
Since 2019, more than 650 vessels have been removed from the Panama registry for involvement in sanctions violations, illegal fishing, or illicit activities. In late 2024 Panama pledged automatic cancellation where vessels are sanctioned by the U.S., EU, UK or UN. Since the entry into force of Executive Decree 51 of 2024, Panama has cancelled 247 vessels, illustrating its determination to protect the reputation of its flag even at the expense of tonnage.
This measure together with the Pre-Check Process and Age Restrictions previously explained and the tightening rules on ship-to-ship (STS) transfers of oil mark a meaningful compliance-by-design shift by the world’s largest flag, which historically faced criticism for permissiveness. This ensures that vessels with links to sanctioned or non-compliant actors are screened out at the outset and minimise opportunities for opaque or high-risk transactions.
5.The Electronic Vessel Registry (REN)
Although the substantive legal framework governing the creation and registration of ship mortgages in Panama remains anchored in the Maritime Commerce Law, recent procedural and institutional reforms are reshaping how mortgages are processed and how mortgagees evaluate their security. The most significant development is the launch of the Electronic Vessel Registry (REN) in 2025, which integrates the General Directorate of Merchant Marine’s systems with the General Directorate of Titles and Encumbrances of the Panama Maritime Authority. This integration is intended to streamline the filing of ownership titles, ship mortgages, and related liens, enabling these records to be lodged and tracked on a single digital platform. By adopting REN, Panama strengthens its reputation as a modern jurisdiction, aligned with international best practices.
For financiers, REN promises greater speed, transparency, and visibility in tracking the progress of mortgage registrations.
6.No-Objection Letter (“Carta de No Objeción”) for Fishing Vessels
A crucial reform was introduced through Resolution ADM/ARAP No. 005 of 23 January 2024 issued by the Aquatic Resources Authority of Panama (ARAP). This resolution sets out the requirements to obtain a No-Objection Letter for enrolment, change of service or change of ownership of fishing vessels or related fishing activities.
Key changes
The changes present owners with new opportunities to demonstrate transparency and regulatory compliance which enhance access to reputable charterers, financiers, and insurers. In addition, full disclosure of ownership and alignment with international fishing regulations position shipowners as trusted partners in global trade. On the other hand, for financiers and insurers, enhanced documentary transparency provides stronger assurance when validating title and enforcing ship mortgages. These reforms strengthen legal certainty, reduce hidden risks, and allow financiers and insurers to support vessels with greater confidence in their long-term regulatory standing.
7.IMO Instruments recently implemented by Panama
The IMO Ballast Water Management Convention requires ships to comply with the D-2 standard, which mandates the installation of approved ballast water treatment systems, in accordance with the Convention’s implementation timetable. Panama has incorporated D-2 compliance as a core element of its Pre-Check and flagging policy: operators must declare the ballast water management method adopted and, for existing vessels within scope, demonstrate compliance with the D-2 standard by the IMO deadline. The AMP’s General Directorate of Merchant Marine, through its circulars and guidance, has reinforced that evidence of the chosen ballast water treatment approach is a prerequisite for registry eligibility in many cases.
For financiers, the measures introduced by Panama should be seen as an opportunity rather than a challenge. Collectively, they strengthen asset quality, improve transparency, and align the registry with international standards, creating a more secure environment for ship finance.
Hub Expansion
In parallel with legal and regulatory reforms, Panama is rapidly expanding its physical logistics infrastructure and strengthening the Canal’s supporting capacities. These developments have significant legal, financing, operational, and environmental implications for shipowners, financiers, insurers, port operators, logistics providers, and related stakeholders. Among the Canal’s latest strategic projects and capacity expansions are:
In parallel, the development will be complemented by the construction of two new ports in Corozal and Telfers, aimed at strengthening logistics capabilities and generating additional revenue streams.
Panama remains one of the world’s premier maritime registries, but the rules of the game have changed: transparency, compliance, and modernisation are now essential across the industry. Recent reforms reflect Panama’s proactive approach to aligning its registry with global expectations.
The introduction of the Pre-Check gateway, the integration of BWMC D-2 and EEXI/CII requirements into national practice, the launch of the digital registry, and the active removal of non-compliant vessels signal Panama’s transformation from a passive registrar into a proactive steward of maritime compliance.
For shipowners, banks, and investors, the practical conclusions are twofold:
Panama’s reforms make compliance the precondition for access not only to its registry, but also to the most competitive terms in the shipping finance market. Early engagement with Panama-based counsel and technical advisers, the inclusion of robust compliance and retrofit covenants in transactional documentation, and close coordination with recognised organisations and classification societies are now indispensable tools for financiers and owners alike.