ORGANIZATION OF AMERICAN STATES

INTER-AMERICAN CONVENTION ON TRANSPARENCY
IN CONVENTIONAL WEAPONS ACQUISITIONS

THE STATES PARTIES, 

BEARING IN MIND their commitments to the United Nations and the Organization of American
States to contribute more fully to openness and transparency by exchanging information on weapon
systems covered by the United Nations Register of Conventional Arms; 

REITERATING the importance of annual reporting to the United Nations Register of Conventional
Arms of information on imports, exports, military holdings, and procurement through national
production of major weapon systems; 

BUILDING UPON AND REAFFIRMING the declarations of Santiago (1995) and San Salvador
(1998) on confidence- and security-building measures, which recommend the application of such
measures in the most appropriate manner; 

RECOGNIZING that in accordance with the Charter of the Organization of American States and
the Charter of the United Nations, Member States have the inherent right of individual or collective
self-defense; 

RECOGNIZING that the commitments made in this Convention are an important step towards
achieving one of the essential purposes established in the Charter of the Organization of American
States, which is "to achieve an effective limitation of conventional weapons that will make it possible
to devote the largest amount of resources to the economic and social development of the Member
States"; 

RECOGNIZING that it is important for the international community to contribute to the objective of
this Convention; and 

EXPRESSING their intention to continue consideration of appropriate steps to advance the
effective limitation and control of conventional weapons in the region, 

HAVE AGREED AS FOLLOWS:



ARTICLE I
DEFINITIONS 

For the purposes of this Convention, 

a. "Conventional weapons" means those systems set forth in Annex I to this Convention. Annex I is
an integral part of this Convention. 

b. "Acquisition" means the obtaining of conventional weapons through purchase, lease,
procurement, donation, loan, or any other method, whether from foreign sources or through national
production. "Acquisition" does not include the obtaining of prototypes, developmental items, and
equipment in research, development, test, and evaluation, to the extent that such prototypes, items,
or equipment are not incorporated into the inventory of the armed forces. 

c. "Incorporation into the inventory of the armed forces" means entry of the conventional weapon
into service, even for a limited period of time. 



ARTICLE II
OBJECTIVE 

The objective of this Convention is to contribute more fully to regional openness and transparency in
the acquisition of conventional weapons by exchanging information regarding such acquisitions, for
the purpose of promoting confidence among States in the Americas. 



ARTICLE III 
ANNUAL REPORTS ON IMPORTS AND EXPORTS 
OF CONVENTIONAL WEAPONS

1. States Parties shall report annually to the depositary on their imports and exports of conventional
weapons during the preceding calendar year, providing information, with respect to imports, on the
exporting State, and the quantity and type of conventional weapons imported; and information, with
respect to exports, on the importing State, and the quantity and type of conventional weapons
exported. Any State Party may supplement its submission with any additional information it
considers relevant, such as the designation and model of the conventional weapons. 

2. Information to be submitted pursuant to this article shall be provided to the depositary as soon as
possible, but no later than June 15 of each year. 

3. Reporting pursuant to this article shall be in the format of Annex II (A) and (B). 



ARTICLE IV
EXCHANGE OF INFORMATION ON ACQUISITIONS 
OF CONVENTIONAL WEAPONS 

In addition to providing the annual reports specified in Article III, States Parties shall notify the
depositary of acquisitions of conventional weapons as follows: 

a. Notification of acquisition through imports. These notifications to the depositary shall be made no
later than 90 days after incorporation of imported conventional weapons into the inventory of the
armed forces. Notifications shall indicate the exporting State, as well as the quantity and type of
imported conventional weapons. Any State Party may supplement its submission with any additional
information it considers relevant, such as the designation and model of the conventional weapons.
Reporting pursuant to this paragraph shall be in the format of Annex II (C). 

b. Notification of acquisition through national production. These notifications to the depositary shall
be made no later than 90 days after incorporation of the conventional weapons acquired through
national production into the inventory of the armed forces. Notifications shall indicate the quantity
and type of conventional weapons. Any State Party may supplement its submission with any
additional information it considers relevant, such as the designation and model of the conventional
weapons. Notwithstanding any other provision of this Convention, States Parties may also
supplement such notifications with information on reconfiguration or modification of conventional
weapons. To encourage further transparency in acquisitions through national production, the
obligation of each State Party to notify under this paragraph may be fulfilled, in accordance with its
domestic legislation, through notice to the depositary of a national funding commitment for
conventional weapons to be incorporated into that State's inventory during the upcoming budget
year. Reporting pursuant to this paragraph shall be in the format of Annex II (D). 

c. Notification of no activity. States Parties with no imports or acquisitions of conventional weapons
through national production during the preceding calendar year shall so report to the depositary as
soon as possible, but no later than June 15. Reporting pursuant to this paragraph shall be in the
format of Annex II (A) and (B). 



ARTICLE V 
INFORMATION FROM OTHER STATES 

Any State that is not a member of the Organization of American States may contribute to the
objective of this Convention by providing information annually to the depositary on its exports of
conventional weapons to the States Parties to this Convention. Such information may identify the
importing State, and the quantity and type of any conventional weapons exported, and may also
include any additional pertinent information, such as designation and model of the conventional
weapons.



ARTICLE VI
CONSULTATIONS

States Parties may consult on information provided pursuant to this Convention.



ARTICLE VII
APPLICATION AND INTERPRETATION 

Any disagreement that may arise with respect to the application or interpretation of this Convention
shall be resolved by any means of peaceful settlement decided upon by the States Parties involved,
which undertake to cooperate to this end.



ARTICLE VIII
CONFERENCES OF THE STATES PARTIES 

After seven years from the date of entry into force of this Convention, and upon the proposal by a
majority of the States Parties, the depositary shall convene a conference of the States Parties. The
purpose of such conference, and of any subsequent conferences, would be to examine the
functioning and application of this Convention, and to consider further transparency measures
consistent with the objective of this Convention, including modifications, pursuant to Article XI, to
the categories of conventional weapons in Annex I. 



ARTICLE IX
SIGNATURE 

This Convention is open for signature by all Member States of the Organization of American States.



ARTICLE X
ENTRY INTO FORCE 

This Convention shall enter into force on the 30th day following the date of deposit with the General
Secretariat of the Organization of American States of the sixth instrument of ratification, acceptance,
approval, or accession by a member state of the Organization of American States. Thereafter, the
Convention shall enter into force for any other Member State of the Organization of American
States on the 30th day following the date of deposit by such State of an instrument of ratification,
acceptance, approval, or accession.



ARTICLE XI
AMENDMENTS 

Any State Party may submit to the depositary a proposal to amend this Convention. The depositary
shall circulate any such proposal to all States Parties. Upon the request of a majority of the States
Parties, the depositary shall, no sooner than 60 days from the date of such request, convene a
conference of the States Parties to consider the proposed amendment. An amendment shall be
adopted upon approval by two thirds of the States Parties present at the conference. Any
amendment so adopted shall enter into force for the States ratifying, accepting, approving, or
acceding to it 30 days after two thirds of the States Parties have deposited their respective
instruments of ratification, acceptance, or approval of the amendment, or of accession thereto.
Thereafter, such an amendment shall enter into force for any other State Party on the 30th day after
that State Party deposits its instrument of ratification, acceptance, or approval of the amendment, or
of accession thereto. 



ARTICLE XII
DURATION AND DENUNCIATION 

This Convention shall remain in force indefinitely, but any State Party may denounce it. The
instrument of denunciation shall be deposited with the General Secretariat of the Organization of
American States. After 12 months from the date of deposit of the instrument of denunciation, the
Convention shall no longer be in force for the denouncing State, but shall remain in force for the
other States Parties. 



ARTICLE XIII
RESERVATIONS 

States Parties may, at the time of adoption, signature, ratification, acceptance, approval, or
accession, make reservations to this Convention, provided that such reservations are not
incompatible with the object and purpose of the Convention and that they concern one or more
specific provisions thereof.



ARTICLE XIV
DEPOSITARY 

1. The depositary of this Convention is the General Secretariat of the Organization of American
States. 

2. Upon receipt of information provided by a State Party pursuant to Article III or IV of this
Convention, the depositary shall promptly transmit such information to all States Parties. 

3. The depositary shall provide to States Parties a consolidated annual report of the information
provided pursuant to this Convention. 

4. The depositary shall notify the States Parties of any proposals received for convening a
conference of the States Parties pursuant to Article VIII. 

5. The depositary shall receive and distribute to the States Parties any information submitted
pursuant to Article V. 



ARTICLE XV
DEPOSIT OF THE CONVENTION 

The original instrument of this Convention, the English, French, Portuguese, and Spanish texts of
which are equally authentic, shall be deposited with the depositary, which shall forward an
authenticated copy of its text to the Secretariat of the United Nations for registration and
publication, in accordance with Article 102 of the United Nations Charter. The depositary shall
notify the Member States of the Organization of American States of signatures, of deposits of
instruments of ratification, acceptance, approval, accession, or denunciation, and of reservations, if
any.



ANNEX I 

The list of conventional weapons covered by this Convention is set forth below. Such list is based
on the United Nations Register of Conventional Arms. 

In accordance with the Article I, this annex is an integral part of this Convention. Any changes to
this Annex shall be adopted in conformity with the amendment procedure stipulated in Article XI. 

I. Battle tanks 

Tracked or wheeled self-propelled armored fighting vehicles with high cross-country mobility and a
high level of self-protection, weighing at least 16.5 metric tons unladen weight, with a high muzzle
velocity direct fire main gun of at least 75 millimeters caliber. 

II. Armored combat vehicles 

Tracked, semi-tracked, or wheeled self-propelled vehicles, with armored protection and
cross-country capability, either: (A) designed and equipped to transport a squad of four or more
infantrymen, or (B) armed with an integral or organic weapon of at least 12.5 millimeters caliber or a
missile launcher. 

III. Large caliber artillery systems 

Guns, howitzers, artillery pieces combining the characteristics of a gun or a howitzer, mortars, or
multiple-launch rocket systems, capable of engaging surface targets by delivering primarily indirect
fire, with a caliber of 100 millimeters and above. 

IV. Combat aircraft 

Fixed-wing or variable-geometry wing aircraft designed, equipped, or modified to engage targets by
employing guided missiles, unguided rockets, bombs, guns, cannons, or other weapons of
destruction, including versions of these aircraft which perform specialized electronic warfare,
suppression of air defense, or reconnaissance missions. The term "combat aircraft" does not include
primary trainer aircraft, unless designed, equipped, or modified as described above. 

V. Attack helicopters 

Rotary-wing aircraft designed, equipped, or modified to engage targets by employing guided or
unguided anti-armor, air-to-surface, air-to-subsurface, or air-to-air weapons and equipped with an
integrated fire control and aiming system for these weapons, including versions of these aircraft
which perform specialized reconnaissance or electronic warfare missions. 

VI. Warships 

Vessels or submarines armed and equipped for military use with a standard displacement of 750
metric tons or above, and those with a standard displacement of less than 750 metric tons,
equipped for launching missiles with a range of at least 25 kilometers or torpedoes with similar
range. 

VII. Missiles and missile launchers 

Guided or unguided rockets, ballistic or cruise missiles capable of delivering a warhead or weapon
of destruction to a range of at least 25 kilometers, and means designed or modified specifically for
launching such missiles or rockets, if not covered by categories I through VI. This category: 

a. Also includes remotely-piloted vehicles with the characteristics for missiles as defined above; 

b. Does not include ground-to-air missiles.



INTER-AMERICAN CONVENTION ON TRANSPARENCY IN CONVENTIONAL
WEAPONS ACQUISITIONS

ARTICLE III ANNUAL IMPORT NOTIFICATION

REPORTING COUNTRY ____________________ CALENDAR YEAR ____________________ 

A. CONVENTIONAL
WEAPONS
B.
QUANTITY
C. TYPE
D. EXPORTING
STATE
E. Additional
information1/
I.BATTLE TANKS 




ARMORED COMBAT
VEHICLES 




LARGE-CALIBER
ARTILLERY
SYSTEMS 




IV.COMBAT AIRCRAFT




ATTACK
HELICOPTERS 




VI.WARSHIPS 




VII.. MISSILES AND
MISSILE
LAUNCHERS 






Bold items are mandatory.



ANNEX II (B)

INTER-AMERICAN CONVENTION ON TRANSPARENCY IN CONVENTIONAL
WEAPONS ACQUISITIONS

ARTICLE III ANNUAL EXPORT NOTIFICATION

REPORTING COUNTRY _____________________ CALENDAR YEAR ______________

A. CONVENTIONAL
WEAPONS
B.
QUANTITY
C. TYPE
D. IMPORTING
STATE
E. Additional
information2/
I.BATTLE TANKS 




ARMORED COMBAT
VEHICLES 




LARGE-CALIBER
ARTILLERY SYSTEMS




COMBAT AIRCRAFT 




ATTACK
HELICOPTERS 




WARSHIPS 




MISSILES AND
MISSILE LAUNCHERS 






Bold items are mandatory.



ANNEX II (C)

INTER-AMERICAN CONVENTION ON TRANSPARENCY IN CONVENTIONAL
WEAPONS ACQUISITIONS

ARTICLE IV NOTIFICATION OF ACQUISITION THROUGH IMPORTS



REPORTING COUNTRY ____________________ DATE ____________________

A. CONVENTIONAL
WEAPONS
B.
QUANTITY
C. TYPE
D. EXPORTING
STATE
E. Additional
information3/
CATEGORIES I VII.






Bold items are mandatory.



ANNEX II (D)

INTER-AMERICAN CONVENTION ON TRANSPARENCY IN CONVENTIONAL
WEAPONS ACQUISITIONS

ARTICLE IV NOTIFICATION OF ACQUISITION THROUGH NATIONAL
PRODUCTION



REPORTING COUNTRY ____________________________ DATE____________________

A. CONVENTIONAL WEAPONS
B. QUANTITY
C. TYPE
D. Additional information4/
CATEGORIES I VII.





Bold items are mandatory.


Signatories and Ratifications