International Judicial Assistance · 1975 Convention · 1979 Additional Protocol
International Service of Process. Official Judicial Cooperation. Documented Results.
When civil litigation crosses international borders, the court issuing the documents and the country receiving them may operate under different legal systems.
The Inter-American Convention on Letters Rogatory and its Additional Protocol provide a structured mechanism for cooperation between participating countries.
Under the applicable framework, qualifying judicial documents can be transmitted through designated Central Authorities, delivered according to the receiving country’s procedures, and returned with official documentation of the outcome.
But the treaty’s application is not universal.
Participating countries, the legal scope of the proceeding, document requirements, authorized transmission channels, and proof of execution must all be evaluated.
For the United States, there is an especially important distinction: its treaty participation is limited to service of documents, and its formal outbound Inter-American requests proceed through the U.S. Central Authority’s designated process.
This guide explains the Convention, the Additional Protocol, the required forms, U.S. procedures, and the differences between Inter-American and Hague Convention service.
Legal Information Notice
This guide provides general legal education. Treaty applicability, available service methods, court instructions, and country-specific requirements must be evaluated for the particular proceeding.The Direct Answer
The Inter-American Convention on Letters Rogatory is an international treaty adopted in Panama City on January 30, 1975.
It establishes a framework for judicial cooperation involving qualifying procedural requests between participating countries.
The Convention can facilitate formal service of legal documents, summonses, and subpoenas in civil or commercial proceedings.
Its Additional Protocol, adopted in Montevideo on May 8, 1979, provides a more standardized process involving Central Authorities and prescribed forms.
Together, the agreements are commonly referred to as the Inter-American Convention and Additional Protocol, or IACAP.
The framework addresses:
They do not automatically:
The Essential Principle
The Inter-American framework facilitates international judicial cooperation. The governing law and appropriate authorities determine how the requested service is performed and documented.
1975 Convention · 1979 Additional Protocol
The Inter-American Convention and the Additional Protocol are related but distinct agreements.
Their provisions establish different parts of the international judicial assistance system.
Adopted January 30, 1975 — Panama City, Panama.
The original Convention establishes the general framework for letters rogatory between participating States.
It addresses the scope of judicial assistance, transmission, legal requirements, execution, applicable law, costs, and other procedural matters.
Its original text includes provisions for service-related requests and certain evidence-related assistance, subject to reservations.
Adopted May 8, 1979 — Montevideo, Uruguay.
The Additional Protocol establishes a more specific operational process.
A country may be party to the original Convention without being party to the Additional Protocol.
Those are not automatically equivalent treaty relationships.
The United States recognizes Inter-American treaty relationships only with countries that are parties to both agreements.
For U.S. service-of-process matters, checking only the original Convention’s participation list is insufficient.
Official Texts
Organization of American States
Organization of American States
Treaty Applicability
Identify the originating court or competent authority and country.
The legal proceeding establishes the documents and the requirements applicable to the requesting party.
Identify the destination country and the recipient’s actual service address.
The destination’s local service laws and designated authorities are relevant to execution.
For a treaty relationship involving the United States, verify participation in both the Convention and Additional Protocol.
A country appearing on only one treaty list is not sufficient.
The U.S. treaty relationship is limited to legal service of documents.
The original Convention’s broader language does not mean the United States accepts all categories of judicial assistance under this framework.
Determine whether the assignment is proceeding through the formal Additional Protocol mechanism or whether another independently authorized method is under consideration.
The legal requirements for each may differ.
The Correct Starting Point
Confirm the countries, proceeding, applicable treaty relationship, service method, and required proof before preparing the transmission.
Treaty Membership · Current Status
The Convention and Additional Protocol concern international judicial assistance among participating States.
Countries appearing in the U.S. Department of State’s published service-convention guidance include Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, El Salvador, Guatemala, Mexico, Panama, Paraguay, Peru, Uruguay, Venezuela, and the United States.
However, a published country list is not a substitute for checking the official treaty records.
Treaty records can contain differences involving signature, ratification, accession, entry into force, reservations, declarations, territorial application, designated Central Authorities, and subsequent changes to administrative contacts.
Official participation, signature, ratification, and reservation record for the 1975 Convention.
Official participation record for the 1979 Additional Protocol, which must be checked separately.
A country’s participation in the Convention alone does not establish the treaty relationship recognized by the United States. Both instruments must be checked.
A country’s location in Latin America also does not independently establish participation.
Even when a treaty relationship exists, the destination’s official authorities, language requirements, execution procedures, and administrative practices must be reviewed.
Operational Availability
The Process Server does not represent every participating country as an operationally available service destination.
International Judicial Assistance
A letter rogatory is a formal judicial assistance request sent from a court or competent authority in one country to an appropriate authority in another.
It may request the receiving authority to perform a procedural act that cannot be directly completed by the originating court within the foreign jurisdiction.
In the context of the Inter-American service framework, the request may concern formal delivery of judicial documents.
A letter rogatory involves judicial cooperation.
The requesting authority identifies the legal action needed. The receiving authority evaluates and carries out the request according to the governing framework and applicable domestic procedure.
The result is communicated through the appropriate official process.
The Additional Protocol uses prescribed forms and Central Authority transmission to make formal requests more standardized.
The required documentation performs the role of a treaty-based letter rogatory.
This means the parties generally do not need to prepare an additional traditional diplomatic letter rogatory document when proceeding through the prescribed protocol mechanism.
Different legal systems may use terms such as letters rogatory, letters of request, or their equivalents in Spanish, Portuguese, and French.
The correct procedural requirements depend on the applicable instrument and jurisdiction.
The Core Distinction
A request for international judicial assistance is not the same thing as hiring a private courier to deliver legal paperwork.
1975 Inter-American Convention
The original Convention establishes the general procedural framework.
The following provisions are especially important to service-of-process research.
Article 2 addresses certain procedural acts in civil or commercial matters.
The original Convention also contemplates evidence-related requests, subject to applicable reservations.
For the United States, the operative treaty relationship is restricted to service of documents.
The Convention excludes procedural acts outside its defined scope and specifically excludes certain compulsory measures.
This matters because service of a document cannot automatically be equated with seizure, enforcement, or compelled evidence production.
The original Convention contemplates several possible transmission channels.
However, the Additional Protocol establishes a specific Central Authority mechanism, and the U.S. formal protocol procedure must be followed when that route is used.
These provisions address legalization, translations, and information accompanying the request.
The Additional Protocol further standardizes the documentation.
Execution of a letter rogatory does not automatically establish that the receiving country recognizes the originating court’s jurisdiction or agrees to recognize or enforce its judgment.
This is one of the most important distinctions in cross-border litigation.
The receiving authority carries out the request according to the destination’s applicable law and procedural rules.
Special procedures or additional formalities may be requested where legally compatible.
The destination’s competent authority addresses questions related to execution of the request.
The original Convention addresses allocation of execution-related expenses.
The Additional Protocol adds specific rules concerning routine processing and certain chargeable services.
The Convention preserves the relevance of other applicable agreements and certain favorable practices.
It should not automatically be interpreted as eliminating every other legally available form of service.
The destination may refuse execution where the request is manifestly contrary to its public policy.
The Editorial Principle
The articles must be considered as part of the entire treaty framework — not extracted individually to justify a preferred service method.
Official Convention Text
Organization of American States
1979 Additional Protocol
The Additional Protocol adds procedural rules intended to facilitate the use of letters rogatory.
The Protocol focuses on the procedural acts covered by Article 2(a) of the original Convention.
Its provisions relate to qualifying formal requests transmitted between designated Central Authorities.
Participating States designate authorities responsible for receiving, transmitting, and processing applicable requests.
Official authority information must be kept current.
Article 3 establishes the prescribed documentation, including Form A and accompanying materials.
It identifies the supporting documents and the role of Forms B and C.
The receiving Central Authority sends the request to the appropriate domestic authority for execution.
After processing, the official result and relevant documentation are returned through the applicable authorities.
Routine processing by the destination’s authorities is generally without charge, subject to the Protocol’s provisions concerning services that require direct payment under local law.
Participating States may identify certain services and expenses for which payments are required.
The applicable official schedule should be checked rather than relying on outdated generalized fee information.
The Protocol provides for certain declarations concerning charges and reciprocal arrangements.
The Critical Difference
The original Convention establishes the broader framework. The Additional Protocol supplies a standardized official process for qualifying requests.
Official Protocol Text & Forms
Organization of American States
Organization of American States
Form A · Form B · Form C
The Additional Protocol contains three prescribed annexed forms.
Each serves a distinct procedural purpose.
Purpose: official request and transmission.
Form A identifies the authorities and the request being transmitted. Information may include:
Form A is not a private company’s ordinary work order. It is part of the treaty’s official request process.
Official Form APurpose: inform the person receiving the documents.
Form B provides information that helps the recipient understand the proceeding and the requested action. Depending on the request, it may identify:
Form B is intended to communicate important information clearly to the recipient.
Official Form BPurpose: official confirmation of the outcome.
Form C is completed through the appropriate receiving authority process. It records whether the request was executed and provides relevant details. These may include:
Form C is not interchangeable with an ordinary process-server affidavit. It is the prescribed official return within the Additional Protocol framework.
Official Form CWhy All Three Matter
Form A communicates the request. Form B supplies essential information for the recipient. Form C documents the official result. A properly prepared request must account for all required components and the destination’s current instructions.
Preparing a Treaty Request
Proper document preparation is central to the formal Inter-American procedure.
Incomplete or defective submissions may cause delay or require correction.
The prescribed formal request must be properly completed.
Current U.S. outgoing instructions require the originating court’s relevant signature and seal.
The U.S. Central Authority’s portion is completed through its official arrangement.
The required recipient information must be supplied in the prescribed form.
Language and copy requirements must be checked.
The prescribed certificate must accompany the request for completion by the receiving authority.
The Protocol requires the relevant originating complaint or initiating pleading and its translation into the destination’s language.
The Protocol separately addresses copies of attachments and judicial orders.
Its rules concerning which materials require translation are not identical for every document category.
Country-specific instructions, applicable court orders, and current U.S. processing guidance must also be considered.
The U.S. Department of State’s published guidance calls for the original and two copies of the prescribed form, together with three copies of the service documents for formal outgoing requests.
Verify the current contractor instructions before assembly.
For a U.S.-originated formal request, the appropriate court authority must authenticate the request as required.
The private provider cannot independently substitute its own business stamp for the originating court’s official seal.
A translation requirement should be treated as a legal and procedural condition rather than an optional customer preference.
The appropriate language and scope must be established for the destination.
Confirm the correct court or competent authority issued the documents.
Confirm the country where the recipient must be served.
Verify participation in both the Convention and the Additional Protocol.
Confirm the currently designated authorities for the destination.
Complete the prescribed request in full.
Supply the required recipient information.
Include the prescribed certificate for the receiving authority.
Obtain the required court signatures and seals.
Assemble complete service documents for each required copy.
Provide the translations required by the Protocol and the destination.
Match the current required number of copies.
Record where and how official results must be returned.
Identify any applicable charges or payment arrangements.
Confirm the recipient’s accurate service address.
Official Procedural Guidance
Official practical guidance for service under the Convention and Additional Protocol
From the Originating Court to the Receiving Authority
The Additional Protocol establishes a recognized sequence for transmitting, executing, and returning qualifying requests.
Determine whether the originating and destination countries have an applicable treaty relationship.
For U.S. proceedings, verify that both countries are parties to the Convention and Additional Protocol.
Identify the court, recipient, documents, and nature of the legal matter.
Confirm that the requested act falls within the relevant treaty scope.
Complete the prescribed request and recipient-information forms and include the certificate for execution.
The requesting authority completes the required signatures and seals.
For U.S.-originated requests, follow the applicable court-clerk and U.S. Central Authority procedures.
The request proceeds through the designated Central Authority mechanism.
For formal outbound requests originating in the United States, current DOJ guidance directs submissions through its designated contractor.
The receiving authority reviews the request and forwards it to the appropriate authority for execution.
Service or the requested procedural act is carried out under the applicable receiving country’s law.
Special methods are evaluated for legal compatibility.
The appropriate authority records the actual outcome and completes the prescribed certificate.
The results and required documents are returned through the formal channels.
The Operational Reality
This procedure depends on multiple authorities and legal systems. Neither the requesting party nor a private coordinator controls every stage. The strength of the process lies in procedural authorization and accurate documentation — not a promise of immediate execution.
Outbound U.S. Service · Inter-American Additional Protocol
For a qualifying U.S. civil proceeding requiring service in another participating country, the formal Additional Protocol process uses the U.S. Central Authority framework.
The United States Department of Justice’s Office of International Judicial Assistance, known as OIJA, is the designated U.S. Central Authority.
Under current DOJ guidance, formal outbound Inter-American requests are transmitted through OIJA by way of its designated contractor, ABC Legal Services.
The requesting party must prepare the applicable forms, obtain the required originating-court authentication, and submit the documents according to the current instructions.
The contractor performs designated administrative functions on behalf of the Central Authority.
The Process Server is not the U.S. Central Authority.
It is not the government’s designated contractor.
It cannot independently issue the official U.S. Central Authority signature or replace required transmission through the treaty channel.
Ordinary U.S. outbound Hague Central Authority requests generally do not require transmission through OIJA.
Formal U.S. outbound Inter-American Additional Protocol requests do.
Confusing these procedures can lead to an incorrectly transmitted request.
The Process Server may review international inquiries, explain the general procedural distinctions, and determine whether any legitimately available coordination assistance can be offered.
An official Inter-American request requiring U.S. Central Authority processing must use the authorized official pathway.
Official U.S. Guidance
Current U.S. Central Authority procedures for inbound and outbound treaty service
Inbound Service · U.S. Recipients
A foreign court may require judicial documents to be served on an individual or business located within the United States.
Where the formal Additional Protocol procedure applies, the request proceeds through the appropriate foreign and U.S. Central Authorities.
The Office of International Judicial Assistance acts as the U.S. Central Authority.
Current DOJ guidance identifies ABC Legal Services as the designated contractor for executing qualifying official incoming service requests on private individuals and companies.
Formal Inter-American service requests to private recipients must follow the applicable official procedures.
Requests involving the United States Government and covered federal entities are handled separately by OIJA.
Ordinary private-party procedures cannot automatically replace the required government-service process.
In certain circumstances, foreign-originated documents may be served by methods available outside the formal treaty-request mechanism.
However, the originating proceeding, applicable law, treaty provisions, and U.S. service rules must support that method.
An independently hired process server cannot represent the resulting affidavit as an official Form C certificate from the Central Authority.
The Critical Distinction
Official treaty-service execution and independently permissible private service are legally different arrangements. The proper pathway must be established before the assignment is accepted.
Alternative Methods · Applicable Law
Not necessarily.
An important distinction exists between the formal mechanism established by the treaty and the question of whether every other service method is legally excluded.
The original Convention’s Article 15 preserves certain other agreements and favorable practices.
U.S. courts have considered whether the treaty displaces other legally authorized methods.
In Morgenthau v. Avion Resources Ltd., 11 N.Y.3d 383 (2008), the New York Court of Appeals addressed the Inter-American Convention in a case involving service in Brazil.
The court concluded that the Inter-American Convention did not make letters rogatory the exclusive method in the circumstances before it.
The decision was based on the governing legal framework and the facts of that case.
The existence of an Inter-American treaty relationship does not automatically answer every question about available alternative service methods.
The decision does not authorize every U.S. process server to serve documents in any foreign country.
The treaty relationships and applicable legal circumstances that existed when an older decision was issued may have changed.
For example, historical decisions involving Brazil must not be treated as a substitute for verifying Brazil’s current Hague and Inter-American treaty relationships.
Legal Standard
An alternative method requires an independent, legally sufficient basis. It is not automatically permitted merely because the Inter-American Convention may be nonexclusive. The originating court and qualified counsel should evaluate the relevant law, potential challenges, and foreign enforceability consequences.
Postal Service · Separate Authorization
Neither the original Convention nor its Additional Protocol expressly creates the same postal-channel structure found in Article 10(a) of the Hague Service Convention.
It is therefore incorrect to treat Inter-American service as though the Hague postal rules automatically apply.
Any postal alternative requires its own review of:
Federal Rule 4 contains provisions addressing service outside the United States in qualifying federal civil actions.
Whether a particular alternative method can be used depends on those provisions and applicable international agreements.
A service method that may be authorized under one legal framework must not be automatically attributed to another.
Key Takeaway
The Inter-American Convention does not independently provide a universal authorization to serve court papers by international mail.
Electronic Service · Court Orders
The Inter-American Convention and Additional Protocol were designed around formal judicial assistance and prescribed transmission documents.
They do not establish a universal private email-service mechanism.
In qualifying federal civil litigation, Rule 4(f)(3) may permit other methods of foreign service when ordered by the court and not prohibited by international agreement.
The rule’s requirements and relevant judicial interpretation must be evaluated.
The recipient’s country may restrict electronic service or apply special requirements to judicial notice.
Knowing a person’s email address does not automatically establish legal authority to use it for service.
The Necessary Distinction
Electronic delivery of a document and legally valid electronic service of process are not automatically equivalent. Do not rely on electronic delivery without establishing the applicable legal authorization.
Inter-American Convention Article 10
Article 10 of the original Inter-American Convention provides that execution follows the laws and procedures of the receiving State.
The requesting authority may seek a special procedure or additional formalities where compatible with the destination’s law.
An originating court may have a preferred service method.
But that preference must be reconciled with what the receiving country is legally permitted to perform.
Certain requests may ask for personal delivery to an individual or authorized business representative.
Other requests may contemplate service under the destination’s ordinary rules when the intended recipient cannot be reached through the preferred method.
The competent receiving authority must determine what is permitted.
Article 10 of the Inter-American Convention is not the same as Article 10 of the Hague Service Convention.
The Hague provision addresses certain alternative transmission channels.
The Inter-American provision primarily concerns execution according to destination law and compatible requested formalities.
The two should never be cited as if they establish identical rules.
Official Certification · Service Results
The Additional Protocol uses Form C to record the official outcome of a qualifying request.
The receiving country’s competent authorities perform or arrange execution under their applicable procedure.
The Central Authority then certifies the result through the prescribed mechanism.
A completed certificate may report:
Where service cannot be completed, the documentation should identify the actual result and relevant reasons.
The appropriate receiving authority carries out the certification responsibilities prescribed by the treaty.
A privately retained process server cannot simply create an official Central Authority certificate in the company’s name.
Not automatically.
Where formal Additional Protocol service is used, the prescribed official certification mechanism applies.
Where another independently authorized method is used, a private affidavit or other form of proof may be appropriate according to its own governing rules.
No.
Article 9 of the original Convention distinguishes execution of a letter rogatory from recognition of jurisdiction or enforcement of a later judgment.
The Professional Principle
The record must reflect the actual method and outcome. No certificate or affidavit should state that service occurred unless supported by the facts.
Language · Recipient Notice
Language requirements can materially affect formal international service.
The relevant initiating complaint or pleading must be provided with the translation required under the Protocol.
The Protocol separately describes supporting attachments and judicial orders.
Their treatment under Article 3 is not identical to that of the initiating pleading.
However, destination-specific instructions and other applicable legal requirements may call for further translations.
The forms follow the approved language framework under the Protocol.
Their completion must comply with the applicable official instructions.
The State Department’s guidance identifies translation requirements for documents to be served abroad.
The originating court, foreign authority, and current designated-contractor instructions should be checked together.
Foreign-language documents intended for service in the United States may require translations depending on the official mechanism, applicable instructions, and legal requirements of the originating proceeding.
The purpose of service includes legally required notice.
An inaccurate or incomplete translation can create uncertainty concerning the documents being delivered and the recipient’s ability to understand the proceeding.
Translation compliance must be evaluated before submission, not assumed after an attempted service.
Treaty Charges · Official Processing · Commercial Pricing
The Additional Protocol includes provisions addressing routine official processing and certain additional expenses.
It should not be assumed that every international service assignment carries one universal price.
Article 5 of the Additional Protocol generally provides for routine processing by the destination’s Central Authority and judicial authorities without an ordinary processing charge.
Certain services may still involve expenses payable under local law.
Current DOJ guidance indicates that ABC Legal does not charge a processing fee for formal service requests under the Inter-American Convention.
This is an official contractor arrangement.
It is not a price quoted by The Process Server.
Certain receiving jurisdictions may prescribe costs for particular services.
Current official schedules and instructions must be reviewed.
Separate costs may arise for:
Where The Process Server can legitimately provide separately scoped assistance, any applicable professional service fees must be disclosed as part of an individual quote.
No Universal Rate
The treaty does not establish a single worldwide commercial price for every service provider. The Process Server does not publish fixed international service rates.
Official Processing · Court Deadlines
Formal Inter-American service may require participation by the originating court, designated Central Authorities, receiving authorities, and other competent participants.
Actual timing depends on:
The U.S. Department of State has described periods of several months as common for formal requests, with some countries taking substantially longer.
Those published descriptions should not be treated as guarantees or as a current estimate for every destination.
An urgent service deadline must be identified before preparation begins.
The issuing court or counsel may need to consider extensions, different legally permitted methods, or other appropriate procedural measures.
The ordinary Rule 4(m) 90-day service period does not apply to qualifying foreign service under Rule 4(f) or 4(h)(2).
This exception does not eliminate other court orders, diligence obligations, or case-specific requirements.
Timing Standard
The treaty establishes a procedural channel — not a guaranteed international dispatch or completion schedule.
Two Treaties · Distinct Procedures
Both frameworks concern international judicial assistance involving qualifying legal documents.
But their structure, participation, procedural forms, and U.S. administrative arrangements differ.
No.
A country may participate in one treaty but not the other.
Where both frameworks may be relevant, counsel must determine which procedure applies to the intended service and how the originating court’s rules interact with international obligations.
Not in the sense of an identical provision.
The article numbering and legal subject matter differ.
No.
Service of process and recognition or enforcement of a judgment are separate legal questions.
| Question | Inter-American Framework | Hague Service Convention |
|---|---|---|
| Principal agreement | 1975 Convention and 1979 Additional Protocol | 1965 Hague Service Convention |
| Treaty participation | Check both agreements for a U.S. treaty relationship | Check the applicable Hague Contracting-State relationship |
| Principal channel | Central Authority letters rogatory under the Additional Protocol | Central Authority request under Articles 2–6 |
| Prescribed forms | Forms A, B, and C | Hague Model Form |
| U.S. outbound formal channel | Through OIJA via its designated contractor | Generally through a competent forwarding authority to the foreign Central Authority |
| U.S. incoming formal private-party service | Through the designated U.S. contractor | Through the designated U.S. contractor |
| Other methods | Depend on independently applicable law and agreements | Certain alternative channels recognized under the treaty, subject to conditions |
| Certificate | Form C — Certificate of Execution | Hague Article 6 Certificate |
| U.S. evidence collection | Excluded from U.S. Inter-American treaty participation | Separate Hague Evidence Convention concerns evidence |
| Guaranteed timeline | None | None |
Modern Treaty Forms · Traditional Judicial Assistance
Traditional letters rogatory may involve formal judicial requests, diplomatic or consular transmission, foreign judicial processing, and other administrative steps.
The Inter-American Additional Protocol provides a standardized form-based mechanism for qualifying participating countries.
The Additional Protocol identifies:
The process can still require foreign legal authorities.
Where the Inter-American framework is unavailable or inapplicable, another treaty, traditional letters rogatory, or an independently legally authorized method may need consideration.
Selection Standard
The appropriate legal mechanism should be selected based on the proceeding and jurisdiction — not merely administrative convenience.
Mexico · Border Courts · Official Requirements
Article 7 of the original Convention recognizes a special provision concerning courts in border areas of participating States.
It addresses certain direct execution arrangements and legalization.
However, the provision must not be interpreted as unrestricted permission for a U.S. lawyer or private server to bypass all official treaty procedures.
The U.S. Department of State’s published guidance identifies additional authentication considerations associated with certain requests transmitted from border states to Mexican authorities.
Current destination-country and official contractor instructions must be verified.
Several categories of participant are involved, and they should not be conflated:
A request incorrectly transmitted under an assumed border exception may be rejected or produce service whose legal sufficiency is contested.
Border-State Principle
A border-state location alone does not establish authorization for a particular method.
Recipient Type Matters
The intended recipient affects the legal method and documentation requirements.
Formal service may require delivery to the named person or another method permitted under the receiving country’s procedure.
Service on a company may involve its legal representative, authorized agent, or another recipient identified by applicable law.
The correct entity, location, and authorized recipient must be identified.
A registered agent may be an appropriate recipient in certain proceedings.
However, the legal effect of delivery to an agent must be established under applicable law.
Requests involving governmental recipients can follow specialized rules and official requirements.
In the United States, formal requests concerning the federal government are handled separately from ordinary private-party requests.
Service on foreign states and covered instrumentalities may involve separate statutory or treaty requirements, including specialized U.S. rules where applicable.
The Rule
The existence of a physical address or a willing recipient does not automatically establish valid service under the governing procedure.
Procedural Accuracy
The United States requires the relevant relationship under both the original Convention and Additional Protocol.
The Inter-American Protocol has its own prescribed Forms A, B, and C.
Formal U.S. outbound Additional Protocol requests must follow the designated official transmission pathway.
A private service company cannot substitute its own authentication for the required court authority.
The initiating pleading and other applicable documents must satisfy the relevant requirements.
The prescribed number of copies and supporting documents must be included.
Current Central Authority designations must be verified.
The Convention does not independently authorize unrestricted postal service.
Other methods may be available under independently applicable law, but require their own legal basis.
Official treaty certification and private-service documentation are different forms of proof.
Completing a letter rogatory does not guarantee recognition or enforcement of a judgment.
Formal international assistance depends on authorities and conditions beyond one provider’s control.
The Professional Standard
Determine the correct procedure before execution. Maintain accurate documentation. Represent unsuccessful outcomes truthfully.
Applying the Framework
The following scenarios are illustrative only.
A U.S. civil lawsuit requires service on a recipient located in Mexico.
The parties must evaluate the relevant treaty relationships, governing court rules, authorized methods, and any destination-specific requirements.
If the formal Inter-American Additional Protocol procedure is selected, the U.S. Central Authority’s authorized transmission pathway applies.
Key lesson: the chosen treaty method determines the required transmission and documentation process.
A foreign civil proceeding requires notice to a company located in the United States.
The requesting legal team must establish the appropriate method under its governing law.
A formal Inter-American request follows the relevant Central Authority procedure. An independently permissible U.S. service method may be a separate legal question.
Key lesson: the same destination may have different possible pathways, but the originating proceeding controls which methods are legally sufficient.
A litigant believes a private courier can complete service more quickly than a formal foreign authority.
Before using that method, the litigant must establish a legally sufficient basis under the applicable rules and agreements.
The Inter-American Convention’s nonexclusive interpretation in certain judicial decisions does not automatically authorize every foreign private-service method.
Key lesson: a potentially available alternative is not the same as an automatically valid alternative.
These examples are educational and do not establish the correct service method in a particular case.
Research · Procedural Review · Appropriate Coordination
The Process Server provides an initial inquiry pathway for qualifying international service-of-process matters.
Review begins with the originating proceeding, destination country, recipient, and requested method.
Provide:
An initial review may identify:
We do not impersonate a Central Authority.
We do not replace the DOJ’s official contractor.
We do not issue official treaty certifications in the company’s name.
We do not guarantee foreign acceptance of an independently selected method.
We do not provide legal representation or determine the merits of the underlying proceeding.
International inquiries may be directed to service@processserver.io or (602) 675-8633.
Do not transmit sensitive records through ordinary email before an appropriate secure-transfer arrangement is established.
Inter-American Convention FAQs
It is a 1975 international treaty establishing rules for certain judicial assistance requests between participating countries, including qualifying international service of process.
The 1979 Additional Protocol establishes standardized forms, Central Authority transmission, execution procedures, and official return documentation for qualifying requests.
No. They are separate but related international agreements. U.S. treaty relationships under this framework require participation in both.
Yes. The United States participates for purposes of service of legal documents, subject to its treaty limitations and reservations.
The United States excluded evidence-taking requests from its treaty participation under this framework. Evidence collection may require another legal mechanism.
The answer requires checking the official OAS participation and ratification records for both agreements. A country appearing on only one list may not have the necessary treaty relationship with the United States.
It is a designated governmental authority responsible for specified functions under the applicable international judicial assistance framework.
The U.S. Department of Justice’s Office of International Judicial Assistance.
Yes. Current DOJ guidance identifies ABC Legal Services as the designated contractor for specified official Inter-American service-request functions on behalf of the U.S. Central Authority.
Not merely by offering process-serving services. The designated official transmission and execution arrangements must be respected.
Potentially under another legally available method. The originating proceeding, applicable agreements, destination law, and qualifications of the person serving must support that method.
Form A is the prescribed letter rogatory request used under the Additional Protocol.
Form B supplies essential information to the intended recipient or relevant receiving authority.
Form C is the prescribed certificate documenting execution or non-execution of the request.
Formal U.S.-originated requests require the applicable court authentication and official Central Authority documentation according to current instructions.
Yes, qualifying requests are subject to the Protocol’s translation requirements and any applicable destination-specific instructions.
The agreements do not independently establish a universal postal-service mechanism. Any alternative method requires a separate legally sufficient basis.
Not automatically. Electronic service requires applicable legal authorization, which may involve the originating court and relevant international legal restrictions.
Courts have recognized that the Convention does not necessarily displace every other legally authorized method. The legal sufficiency of a particular alternative must still be evaluated.
No. The treaties have different participation requirements, forms, transmission procedures, and administrative arrangements.
The original Convention addresses certain formal procedural acts including qualifying subpoenas, but whether a particular request falls within the applicable U.S. treaty relationship and service-only scope requires review. Compelled evidence collection and enforcement cannot be assumed available under the U.S. service framework.
Not universally. The authorized method depends on the formal request, the destination’s law, and any compatible special procedure.
Timing varies by country, official processing requirements, document readiness, recipient circumstances, and return documentation. No universal completion deadline applies.
Routine formal processing has treaty-based cost provisions. Current DOJ guidance identifies no contractor processing fee for Inter-American official requests, but translations and other separately chargeable services may still involve expenses.
No. The originating court may still need to evaluate procedural sufficiency, jurisdiction, and other issues.
No. Article 9 distinguishes execution of the request from recognition of jurisdiction or enforcement of a later judgment.
Qualifying international inquiries may be submitted for review. Official treaty procedures must be handled through the appropriate designated authorities. Any independent coordination offering is subject to actual capability and legal authorization.
Primary Authorities
Official Legal Sources & Research References
These sources provide the authoritative foundation for understanding the Inter-American service framework. No listed organization sponsors or endorses this guide.
Official treaty text · Organization of American States
Official treaty text · Organization of American States
Official signature, ratification, and reservation record
Official participation record for the 1979 Protocol
Official prescribed request form
Official recipient-information form
Official certificate form
Current U.S. Central Authority procedures, including the designated contractor arrangement for Inter-American requests
Official practical guidance for service under the Convention and Additional Protocol
General official guidance concerning international judicial assistance
Relevant rules include Rule 4(f), Rule 4(h)(2), and Rule 4(m)
11 N.Y.3d 383 (2008) — New York Court of Appeals decision addressing the nonexclusive nature of the Inter-American Convention in the circumstances examined
Research Note
Treaty status, governmental designations, procedures, and applicable law may change. Verify the current official record before preparing a request.
Publication of this guide does not establish affiliation with the Organization of American States, the U.S. Department of Justice, or any judicial authority.
International Judicial Assistance
International service of process must respect the boundaries of legal authority.
The Inter-American Convention and Additional Protocol provide a framework for transmitting qualifying judicial requests, carrying out authorized service, and documenting the result.
But successful execution begins with understanding which procedure applies.
A complete request requires the correct jurisdiction, competent authority, documents, forms, and service method. The Process Server provides a point of contact for evaluating qualifying international service inquiries and identifying available next steps.
Explore the commercial process for service on foreign recipients.
Service of Process AbroadUnderstand the distinction between official treaty requests and legally permissible independent U.S. service.
Service of Process Into the U.S.Compare the Hague Service Convention’s own channels, forms, and certificates.
Hague Service ConventionBegin an International Inquiry
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