INTERNATIONAL CONVENTION FOR THE CONSERVATION OF ATLANTIC  
TUNAS 

Rio de Janeiro, 14 May 1966 


The Government whose duly authorized representatives have  
subscribed hereto, considering their mutual interest in the  
populations of tuna and tuna-like fishes found in the Atlantic  
Ocean, and desiring to co-operate in maintaining the populations  
of these fishes at levels which will permit the maximum  
sustainable catch for food and other purposes, resolve to conclude  
a Convention for the coservation of the resources of tuna and  
tuna-like fishes of the Atlantic Ocean, and to that end agree as  
follows: 


Article I 

The area to which this Convention shall apply, hereinafter  
referred to as the "Convention area" shall be all waters of the  
Atlantic Ocean, including the adjacent Seas. 


Article II 

Nothing in this Convention shall be considered as affecting the  
rights, claims or view of any Contracting Party in regard to the  
limits of territorial waters or the extent of jurisdiction over  
fisheries under international law. 


Article III 

1. The Contracting Parties hereby agree to establish and maintain  
a Commission to be known as the International Commission for the  
Conservation of Atlantic Tunas, hereinafter referred to as "the  
Commission", which shall carry out the objectives set forth in  
this Convention. 

2. Each of the Contracting Parties shall be represented on the  
Commission by not more than three Delegates. Such Delegates may be  
assisted by experts and advisors. 

3. Except as may otherwise be provided in this Convention,  
decisions of the Commission shall be taken by a majority of the  
Contracting Parties, each Contracting Party having one vote. Two- 
thirds of the Contracting Parties shall constitute a quorum. 

4. The Commission shall hold a regular meeting once every two  
years. A special meeting may be called at any time at the request  
of a majority of the Contracting Parties or by decision of the  
Council as constituted in Article V. 

5. At its first meeting, and thereafter at each regular meeting,  
the Commission shall elect from among its Members a Chairman, a  
first Vice-Chairman and a second Vice-Chairman who shall not be  
re-elected for more than one term. 

6. The meetings of the Commission and its subsidiary bodies shall  
be public unless the Commission otherwise decides. 

7. The official languages of the Commission shall be English,  
French and Spanish. 

8. The Commission shall have authority to adopt such rules of  
procedure and financial regulations as are necessary to carry out  
its functions. 

9. The Commission shall submit a report to the Contracting Parties  
every two years on its work and findings and shall also inform any  
Contracting Party, whenever requested, on any matter relating to  
the objectives of the Convention. 


Article IV 

1. In order to carry out the objectives of this Convention the  
Commission shall be responsible for the study of the populations  
of tuna and tuna-like fishes (the Scombriformes with the exception  
of the families Trichiuridae and Gempylidae and the genus Scomber)  
and such other species of fishes exploited in tuna fishing in the  
Convention area as are not under investigation by another  
international fishery organization. Such study shall include  
research on the abundance, biometry and ecology of the fishes; the  
oceanography of their environment; and the effects of natural and  
human factors upon their abundance. The Commission, in carrying  
out these responsibilities shall, insofar as feasible, utilise the  
technical and scientific services of, and information from,  
official agencies of the Contracting Parties and their political  
subdivisions and may, when desirable, utilize the available  
services and information of any public or private institution,  
organization or individual, and may undertake within the limits of  
its budget independent research to supplement the research work  
being done by governments, national institutions or other  
international organizations. 

2. The carrying out of the provisions in paragraph 1 of this  
Article shall include: 

a) collecting and analysing statistical information relating to  
the current conditions and trends of the tuna fishery resources of  
the Convention area; 

b) studying and appraising information concerning measures and  
methods to ensure maintenance of the populations of tuna and tuna- 
like fishes in the Convention area at levels which will permit the  
maximum sustainable catch and which will ensure the effective  
exploitation of these fishes in a manner consistent with this  
catch; 

c) recommending studies and investigations to the Contracting  
Parties; 

d) publishing and otherwise disseminating reports of its findings  
and statistical, biological and other scientific information  
relative to the tuna fisheries of the Convention area. 


Article V 

1. There is established within the Commission a Council which  
shall consist of the Chairman and the Vice-Chairman of the  
Commission together with the representatives of not less than four  
and not more than eight Contracting Parties. The Contracting  
Parties represented on the Council shall be elected at each  
regular meeting of the Commission. However, if at any time the  
number of the Contracting Parties exceeds forty, the Commission  
may elect an additional two Contracting Parties to be represented  
on the Council. The Contracting Parties of which the Chairman and  
Vice-Chairman are nationals shall not be elected to the Council.  
In elections to the Council the Commission shall give due  
consideration to the geographic, tuna fishing and tuna processing  
interests of the Contracting Parties, as well as to the equal  
right of the Contracting Parties to be represented on the Council. 

2. The Council shall perform such functions as are assigned to it  
by this Convention or are designated by the Commission, and shall  
meet at least once in the interim between regular meetings of the  
Commission. Between meetings of the Commission the Council shall  
make necessary decisions on the duties to be carried out by the  
staff and shall issue necessary instructions to the Executive  
Secretary. Decisions of the Council shall be made in accordance  
with rules to be established by the Commission. 


Article VI 

To carry out the objectives of this Convention the Commission may  
establish Panels on the basis of species, group of species, or of  
geographic areas. Each Panel in such case: 

a) shall be responsible for keeping under review the species,  
group of species, or geographic area under its purview, and for  
collecting scientific and other information relating thereto; 

b) may propose to the Commission, upon the basis of scientific  
investigations, recommendations for joint action by the  
Contracting Parties; 

c) may recommend to the Commission studies and investigations  
necessary for obtaining information relating to its species, group  
of species or geographic area, as well as the co-ordination of  
programmes of investigation by the Contracting Parties. 


Article VII 

The Commission shall appoint an Executive Secretary who shall  
serve at the pleasure of the Commission. The Executive Secretary,  
subject to such rules and procedures as may be determined by the  
Commission, shall have authority with respect to the selection and  
administration of the staff of the Commission. He shall also  
perform, inter alia, the following functions as the Commission may  
prescribe: 

a) co-ordinating the programmes of investigation by the  
Contracting Parties; 

b) preparing budget estimates for review by the Commission; 

c) authorising the disbursement of funds in accordance with the  
Commission's budget;  

d) accounting for the funds of the Commission; 

e) arranging for co-operation with the organizations referred to  
in Article XI of this Convention; 

f) preparing the collection and analysis of data necessary to  
accomplish the purposes of the Convention particularly those data  
relating to the current and maximum sustainable catch of tuna  
stocks; 

g) preparing for approval by the Commission scientific,  
administrative and other reports of the Commission and its  
subsidiary bodies. 


Article VIII 

1. a) The Commission may, on the basis of scientific evidence,  
make recommendations designed to maintain the populations of tuna  
and tuna-like fishes that may be taken in the Convention area at  
levels which will permit the maximum sustainable catch. These  
recommendations shall be applicable to the Contracting Parties  
under the conditions laid down in paragraphs 2 and 3 of this  
Article. 

b) The recommendations referred to above shall be made: 

(i) at the initiative of the Commission if an appropriate Panel  
has not been established or with the approval of at least two- 
thirds of all the Contracting Parties if an appropriate Panel has  
been established; 

(ii) on the proposal of an appropriate Panel if such a Panel has  
been established; 

(iii) on the proposal of the appropriate Panels if the  
recommendation in question relates to more than one geographic  
area, species or group of species. 

2. Each recommendation made under paragraph 1 of this Article  
shall become effective for all Contracting Parties six months  
after the date of the notification from the Commission  
transmitting the recommendation to the Contracting Parties, except  
as provided in paragraph 3 of this Article. 

3. a) If any Contracing Party in the case of a recommendation made  
under paragraph 1 (b) (i) above, or any Contracting Party member  
of a Panel concerned in the case of a recommendation made under  
paragraph 1 (b) (ii) or (iii) above, presents to the Commission an  
objection to such recommendation within the six months period  
provided for in paragraph 2 above, the recommendation shall not  
become effective for an additional sixty days. 

b) Thereupon any other Contracting Party may present an objection  
prior to the expiration of the additional sixty days period, or  
within forty-five days of the date of the notification of an  
objection made by another Contracting Party within such additional  
sixty days, whichever date shall be the later. 

c) The recommendation shall become effective at the end of the  
extended period or periods for objection, except for those  
Contracting Parties that have presented an objection. 

d) However, if a recommendation has met with an objection  
presented by only one or less than one-fourth of the Contracting  
Parties, in accordance with subparagraphs (a) and (b) above, the  
Commission shall immediately notify the Contracting Party or  
Parties having presented such objection that it is to be  
considered as having no effect. 

e) In the case referred to in subparagraph (d) above the  
Contracting Party or Parties concerned shall have an additional  
period of sixty days from the date of said notification in which  
to reaffirm their objection. On the expiry of this period the  
recommendation shall become effective, except with respect to any  
Contracting Party having presented an objection and reaffirmed it  
within the delay provided for. 

f) If a recommendation has met with objection from more than one- 
fourth but less than the majority of the Contracting Parties, in  
accordance with subparagraphs (a) and (b) above, the  
recommendation shall become effective for the Contracting Parties  
that have not presented an objection thereto. 

g) If objections have been presented by a majority of the  
Contracting Parties the recommendation shall not become effective. 

4. Any Contracting Party objecting to a recommendation may at any  
time withdraw that objection, and the recommendation shall become  
effective with respect to such Contracting Party immediately if  
the recommendation is already in effect, or at such time as it may  
become effective under the terms of this Article. 

5. The Commission shall notify each Contracting Party immediately  
upon receipt of each objection and of each withdrawal of an  
objection, and of the entry into force of any recommendation. 


Article IX 

1. The Contracting Parties agree to take all action necessary to  
ensure the enforcement of this Convention. Each Contracting Party  
shall transmit to the Commission, biennially or at such other  
times as may be required by the Commission a statement of the  
action taken by it for these purposes. 

2. The Contracting Parties agree: 

a) to furnish, on the request of the Commission, any available  
statistical, biological and other scientific information the  
Commission may need for the purposes of this Convention; 

b) when their official agencies are unable to obtain and furnish  
the said information, to allow the Commission, through the  
Contracting Parties, to obtain it on a voluntary basis direct from  
companies and individual fishermen. 

3. The Contracting Parties undertake to collaborate with each  
other with a view to the adoption of suitable effective measures  
to ensure the application of the provisions of this Convention and  
in particular to set up a system of international enforcement to  
be applied to the Convention area except the territorial sea and  
other waters, if any, in which a State is entitled under  
international law to exercise jurisdiction over fisheries. 


Article X 

1. The Commission shall adopt a budget for the joint expenses of  
the Commission for the biennium following each regular meeting. 

2. Each Contracting Party shall contribute annually to the budget  
of the Commission an amount equal to: 

a) U.S. $ 1,000 (one thousand United States dollars) for  
Commission membership. 

b) U.S.$ 1,000 (one thousand United States dollars) for each Panel  
membership. 

c) If the proposed budget for joint expenses for any biennium  
should exceed the whole amount of contributions to be made by the  
Contracting Parties under (a) and (b) of this paragraph, one-third  
of the amount of such excess shall be contributed by the  
Contracting Parties in proportion to their contributions made  
under (a) and (b) of this paragraph. For the remaining two-thirds  
the Commission shall determine on the basis of the latest  
available information: 

(i) the total of the round weight of catch of Atlantic tuna and  
tuna-like fishes and the net weight of canned products of such  
fishes for each Contracting Party; 

(ii) the total of (i) for all Contracting Parties. Each  
Contracting Party shall contribute its share of the remaining two- 
thirds in the same ratio that its total in (i) bears to the total  
in (ii). That part of the budget referred to in this sub-paragraph  
shall be set by agreement of all the Contracting Parties present  
and voting. 

3. The Council shall review the second half of the biennial budget  
at its regular meeting between Commission meetings and, on the  
basis of current and anticipated developments, may authorize  
reapportionment of amounts in the Commission budget for the second  
year within the total budget approved by the Commission. 

4. The Executive Secretary of the Commission shall notify each  
Contracting Party of its yearly assessment. The contributions  
shall be payable on January first of the year for which the  
assessment was levied. Contributions not received before January  
first of the succeeding year shall be considered as in arrears. 

5. Contributions to the biennial budget shall be payable in such  
currencies as the Commission may decide. 

6. At its first meeting the Commission shall approve a budget for  
the balance of the first year the Commission functions and for the  
following biennium. It shall immediately transmit to the  
Contracting Parties copies of these budgets together with notices  
of the respective assessments for the first annual contribution. 

7. Thereafter, within a period not less than sixty days before the  
regular meeting of the Commission which precedes the biennium, the  
Executive Secretary shall submit to each Contracting Party a draft  
biennial budget together with a schedule of proposed assessments. 

8. The Commission may suspend the voting rights of any Contracting  
Party when its arrears of contributions equal or exceed the amount  
due from it for the two preceding years. 

9. The Commission shall establsih a Working Capital Fund to  
finance operations of the Commission prior to receiving annual  
contributions, and for such other purposes as the Commission may  
determine. The Commission shall determine the level of the Fund,  
assess advances necessary for its establsihment, and adopt  
regulations governing the use of the Fund. 

10. The Commission shall arrange an annual independent audit of  
the Commission's accounts. The reports of such audits shall be  
reviewed and approved by the Commission, or by the Council in  
years when there is no regular Commission meeting. 

11. The Commission may accept contributions, other than provided  
for in paragraph 2 of this Article, for the prosecution of its  
work. 


Article XI  

1. The Contracting Parties agree that there should be a working  
relationship between the Commission and the Food and Agriculture  
Organization of the United Nations. To this end the Commision  
shall enter into negotiations with the Food and Agriculture  
Organization of the United Nations with a view to concluding an  
agreement pursuant to Article XIII of the Organization's  
Constitution. Such agreement should provide, inter alia, for the  
Director-General of the Food and Agriculture Organization of the  
United Nations to appoint a Representative who would participate  
in all meetings of the Commission and its subsidiary bodies, but  
without the right to vote. 

2. The Contracting Parties agree that there should be co-operation  
between the Commission and other international fisheries  
commissions and scientific organizations which might contribute to  
the work of the Commission. The Commission may enter into  
agreements with such commissions and organizations. 

3. The Commissions may invite any appropriate international  
organization and any Government which is a Member of the United  
Nations or of any Specialized Agency of the United Nations and  
which is not a member of the Commission, to send observers to  
meetings of the Commission and its subsidiary bodies. 


Article XII 

1. The Convention shall remain in force for ten years and  
thereafter until a majority of Contracting Parties agree to  
terminate it. 

2. At any time after ten years from the date of entry into force  
of this Convention, any Contracting Party may withdraw from the  
Convention on December thirty-first of any year including the  
tenth year by written notification of withdrawal given on or  
before December thirty-first of the preceding year to the  
Director-General of the Food and Agriculture Organization of the  
United Nations. 

3. Any other Contracting Party may thereupon withdraw from this  
Convention with effect from the same December thirty-first by  
giving written notification of withdrawal to the Director-General  
of the Food and Agriculture Organization of the United Nations not  
later than one month from the date of receipt of information from  
the Director-General of the Food and Agriculture Organization of  
the United Nations concerning any withdrawal, but not later than  
April first of that year. 


Article XIII 

1. Any Contracting Party or the Commission may propose amendments  
to this Convention. The Director-General of the Food and  
Agriculture Organization of the United Nations shall transmit a  
certified copy of the text of any proposed amendment to all the  
Contracting Parties. Any amendment not involving new obligations  
shall take effect for all Contracting Parties on the thirtieth day  
after its acceptance by three-fourths of the Contracting Parties.  
Any amendment involving new obligations shall take effect for each  
Contracting Party accepting the amendment on the ninetieth day  
after its acceptance by three-fourths of the Contracting Parties  
and thereafter for each remaining Contracting Party upon  
acceptance by it. Any amendment considered by one or more  
Contracting Parties to involve new obligations shall be deemed to  
involve new obligations and shall take effect accordingly. A  
government which becomes a Contracting Party after an amendment to  
this Convention has been opened for acceptance pursuant to the  
provisions of this Article shall be bound by the Convention as  
amended when the said amendment comes into force. 

2. Proposed amendments shall be deposited with the Director- 
General of the Food and Agriculture Organization of the United  
Nations. Notifications of acceptance of amendments shall be  
deposited with the Director-General of the Food and Agriculture  
Organization of the United Nations. 


Article XIV 

1. This Convention shall be open for signature by any Government  
which is a Member of the United Nations or of any Specialized  
Agency of the United Nations. Any such Government which does not  
sign this Convention may adhere to it at any time. 

2. This Convention shall be subject to ratification or approval by  
signatory countries in accordance with their constitutions.  
Instruments of ratification, approval, or adherence shall be  
deposited with the Director-General of the Food and Agriculture  
Organization of the United Nations. 

3. This Convention shall enter into force upon the deposit of  
instruments of ratification, approval, or adherence by seven  
Governments and shall enter into force with respect to each 
Government which subsequently deposits an instrument of  
ratification, approval or adherence on the date of such deposit. 


Article XV 

The Director-General of the Food and Agriculture Organization of  
the United Nations shall inform all Governments referred to in  
paragraph 1 of Article XIV of deposits of instruments of  
ratification approval or adherence, the entry into force of this  
Convention, proposals for amendments, notifications of acceptance  
of amendments, entry into force of amendments, and notifications  
of withdrawal. 


Article XVI 

The original of this Convention shall be deposited with the  
Director-General of the Food and Agriculture Organization of the  
United Nations who shall send certified copies to the Governments  
referred to in paragraph 1 of Article XIV. 

In Witness Whereof the representatives duly authorized by their  
respective Governments have signed the present Convention. Done at  
Rio de Janeiro this fourteenth day of May 1966 in a single copy in  
the English, French and Spanish languages, each version being  
equally authoritative. 


Annex II 

RESOLUTION ON THE COLLECTION OF STATISTICS ON THE ATLANTIC TUNA  
FISHERIES 

THE CONFERENCE 

Taking note of documents FID: AT/66/4, Annex 6, and FID:  
AT/66/1NF-5 relating to the collection and publication of  
statistics on Atlantic tuna fisheries; and 

Agreeing that it is essential that all countries fishing these  
Atlantic tuna resources should collect adequate statistics on  
catch and fishing effort and the necessary biological data, and  
make available for publication the statistical and related  
economic data with a view to enabling the International Commission  
for the Conservation of Atlantic Tunas to fulfil its functions  
adequately as soon as it is established; 

Urges all countries to take steps without delay to create, where  
they do not already exist, offices within their fisheries  
administrations suitably staffed and having appropriate financial  
and legislative support to undertake the collection and the  
processing of the data to be used by the Commission; and 

Suggests that all countries faced with the task of establishing  
and operating such offices, give priority to requests for  
assistance in this connection through the United Nations  
Development Programme and through the regular programme of the  
Food and Agriculture Organization of the United Nations.