Maritime Will Mexico (Testamento Marítimo)

A Maritime Will Mexico (Testamento Marítimo) is a special testamentary form established in Articles 1569 through 1578 of the Código Civil Federal (CCF), available to Mexican citizens and foreign nationals aboard a Mexican vessel (buque mexicano) navigating at sea — including the high seas, territorial waters, exclusive economic zone, and international waters — when access to a Notario Público is impossible. Article 1569 CCF provides that persons aboard a Mexican vessel in voyage (en viaje) may execute their testamentary dispositions before the captain (capitán) or the officer of highest rank (oficial de mayor graduación) of the vessel, in the presence of two competent witnesses, thereby substituting the vessel's commanding officer for the role ordinarily performed by a Notario Público in a testamento público abierto.

The testamento marítimo reflects the historic reality of maritime law — the ship's captain (capitán del buque) has traditionally wielded quasi-governmental authority at sea, including the authority to perform civil acts, maintain records, and ensure public order in the absence of shore-based authorities. Mexico's maritime authority framework is governed by the Ley de Navegación y Comercio Marítimos (LNCM), which establishes the captain's role as the highest authority aboard a Mexican-flagged vessel and their legal obligations during voyage, including the duty to authenticate certain legal instruments when no other authority is available. The Secretaría de Marina (SEMAR) oversees the maritime registry and the preservation of maritime legal instruments.

Article 1569 CCF establishes that the testamento marítimo follows the same substantive rules as the testamento público abierto under Articles 1511–1520 CCF — the testator must identify themselves, declare testamentary capacity, designate heirs and legatees, appoint an albacea, and address alimentary rights — but with the captain substituting for the Notario Público in the formal act. The captain drafts the will instrument based on the testator's declaration, reads it aloud to the testator and the two witnesses, and all parties sign the document. The instrument is recorded in the ship's log (bitácora del buque) and in any available vessel registry.

Article 1573 CCF establishes a critical transmission obligation: upon arrival at a Mexican port, the captain must deliver the original testamentary instrument (or a certified copy) to the Capitanía de Puerto (Port Authority), which is responsible for transmitting it to the Archivo General de Notarías in the applicable state or to the central federal registry. The RENAT registration occurs after transmission to land authorities — not while the vessel is at sea. This transmission obligation is absolute — a captain who fails to transmit the will upon arrival in port may face administrative and professional consequences under the Ley de Navegación y Comercio Marítimos.

The testamento marítimo's validity is temporally limited in a similar manner to other exceptional testamentary forms: Article 1576 CCF establishes that the maritime will becomes void (caduca) if the testator does not die during the voyage and returns to a location where access to a Notario Público is available, unless the testator confirms the will in a new notarial instrument within four months of arrival in port. This expiry rule again reflects the principle that exceptional forms are emergency substitutes for, not permanent alternatives to, the formal notarial will.

A Maritime Will Mexico is needed when a person — whether a professional seafarer (marino, marinero, oficial de marina, pescador) or a passenger on a vessel — wishes to execute testamentary dispositions while aboard a Mexican vessel at sea and cannot access a Notario Público.

The maritime will is needed by members of Mexico's merchant marine (marina mercante) — officers and crew of Mexican-flagged commercial vessels operating on extended international voyages — who may be at sea for weeks or months without port calls and who wish to have valid testamentary documents in place for the duration of the voyage. The Ley de Navegación y Comercio Marítimos recognises the specific legal needs of seafarers, and the CCF's testamento marítimo provision serves as the succession mechanism for this community.

For fishing vessel crews (tripulantes de barcos pesqueros) operating in the Pacific, Gulf of Mexico, or Caribbean — many of whom are workers without prior formal succession planning — the testamento marítimo provides an accessible testamentary instrument in their working environment. The Secretaría de Agricultura y Desarrollo Rural (SADER) and the Secretaría de Marina (SEMAR) oversee Mexico's fishing fleet, and fishing vessel captains (patrones de pesca) have the authority to authenticate maritime wills in appropriate circumstances.

Passengers on ocean-going vessels — cruise ship passengers, private yacht voyagers, research vessel participants — who experience a medical emergency at sea and wish to make emergency testamentary dispositions can use the testamento marítimo if the vessel is Mexican-flagged and the captain is available. For passengers aboard foreign-flagged vessels, the applicable testamentary law depends on the vessel's flag state — a Mexican citizen aboard a foreign vessel would need to consult the flag state's succession rules, though many jurisdictions have analogous maritime will provisions.

The maritime will is also relevant for persons who combine the maritime will with a pre-existing testamento público abierto — using the maritime will to add or modify dispositions during a voyage, with the understanding that the maritime will must be confirmed or formally revoked after return to shore within the four-month validity window under Article 1576 CCF.

Mexican maritime law recognises that seafarers and offshore workers face unique succession planning challenges given extended periods at sea without access to land-based legal services. The testamento marítimo under Article 1569 CCF directly addresses this reality, providing a legally valid mechanism that seafarers employed on Mexican-flagged vessels can use during any voyage. Workers on offshore oil platforms (plataformas petroleras) operated by Petróleos Mexicanos (PEMEX) or private operators in Mexico's exclusive economic zone should confirm with the platform's legal officer whether the testamento marítimo applies to their specific installation under LNCM provisions.

A valid Maritime Will Mexico under Articles 1569–1578 of the Código Civil Federal must satisfy the following formal requirements specific to the maritime testamentary form, in addition to the standard substantive requirements of Mexican succession law.

Vessel and Voyage Identification: The testamentary instrument must identify the vessel by its full name, registration number (matrícula), flag (pabellón), and type (cargo vessel, fishing vessel, passenger ship, research vessel). The vessel's position at the time of will execution — expressed in geographic coordinates, maritime zone designation, or proximity to named ports — must be recorded. The voyage description (from port of departure to destination port) provides the maritime context for the exceptional circumstances justifying use of this testamentary form.

Captain / Commanding Officer as Notary Substitute: The captain (capitán del buque) or officer of highest rank (oficial de mayor graduación) available must authenticate the will in the capacity of notary substitute under Article 1569 CCF. The instrument must record the captain's or officer's full name, rank, and the authority by which they act. The captain must not be a beneficiary under the will. If the captain is incapacitated or unable to act, the next senior officer of the vessel assumes the authenticating role.

Two Witnesses: Two competent adult witnesses must be present, must hear the testator's declaration, and must sign the instrument. The witnesses must not be heirs, legatees, or direct beneficiaries under the will (Article 1497 CCF). Vessel crew members who are not beneficiaries may serve as witnesses; other passengers may also serve as witnesses if they meet the general competency requirements.

Testator Identification and Capacity: The instrument must contain the testator's full legal name, nationality, CURP (for Mexican citizens), passport number, date of birth, domicile, and a declaration of testamentary capacity. If the testator is a foreign national, the instrument records their passport details and the domicile in their country of residence.

Testamentary Dispositions: The standard substantive elements — universal heir designation, substitute heirs, specific bequests, albacea appointment, alimentary provisions under Article 1368 CCF, and revocation of prior wills under Article 1493 CCF — must all be included in the maritime will instrument.

Ship's Log Entry: The will's execution must be recorded in the bitácora del buque (ship's log), which is a required contemporaneous record under the Ley de Navegación y Comercio Marítimos. The log entry serves as additional authentication of the will's execution circumstances.

Transmission to Port Authority: Upon arrival at the first Mexican port after execution, the captain must deliver the will instrument to the Capitanía de Puerto under Article 1573 CCF for transmission to the Archivo General de Notarías and eventual RENAT registration.

Forms-legal.com provides this Maritime Will Mexico template as a preparation guide for seafarers and passengers planning succession under Mexican law. A testamento marítimo must be executed aboard a Mexican vessel with captain authentication — confirm with the vessel's captain the availability and applicability of this testamentary form before relying on it for succession planning.

Validity and Post-Voyage Formalisation: Under Article 1576 CCF, the testamento marítimo becomes void four months after the testator's return to a location with access to a Notario Público, if the testator has not died during that period. Seafarers returning to port must execute a formal testamento público abierto before a Notario Público to confirm or replace the maritime will and ensure RENAT registration of their succession arrangements. The Asociación Nacional del Notariado Mexicano (ANNM) maintains a directory of notaries in all major Mexican port cities — Veracruz, Manzanillo, Lázaro Cárdenas, Ensenada, Tampico — who can assist seafarers promptly upon their return to shore.

Forms-legal.com provides this Maritime Will Mexico template as a preparation guide for seafarers and passengers planning succession under Mexican maritime and succession law. Confirm applicability with the vessel's captain and formalise the will before a Notario Público upon return to port.