TREATIES AND OTHER INTERNATIONAL ACTS SERIES 14-1217

________________________________________________________________________

ATOMIC ENERGY

Cooperation for Mutual Defense Purposes

Agreement Between the 

UNITED STATES OF AMERICA

and the UNITED KINGDOM OF

GREAT BRITAIN AND 

NORTHERN IRELAND

Amending the Agreement of 

July 3, 1958, as Amended

Signed at Washington July 22, 2014
 NOTE BY THE DEPARTMENT OF STATE

 Pursuant to Public Law 89—497, approved July 8, 1966

(80 Stat. 271; 1 U.S.C. 113)—

“. . .the Treaties and Other International Acts Series issued

under the authority of the Secretary of State shall be competent

evidence . . . of the treaties, international agreements other than

treaties, and proclamations by the President of such treaties and

international agreements other than treaties, as the case may be, 

therein contained, in all the courts of law and equity and of maritime

jurisdiction, and in all the tribunals and public offices of the

United States, and of the several States, without any further proof

or authentication thereof.”
 UNITED KINGDOM OF GREAT BRITAIN AND

 NORTHERN IRELAND 

 

 Atomic Energy: Cooperation for Mutual Defense 

 Purposes

 Agreement amending the agreement of July 3, 1958,

 as amended.

 Signed at Washington July 22, 2014;

 Entered into force December 17, 2014.
AMENDMENTTOTHEAGREEMENTBETWEEN 

THE GOVERNMENT OF THE UNITED STATES OF AMERICA 

AND THE GOVERNMENT OF THE UNITED KINGDOM OF 

GREAT BRITAIN AND NORTHERN IRELAND 

FOR COOPERATION ON THE USES OF ATOMIC ENERGY 

FOR MUTUAL DEFENSE PURPOSES 

The Government of the United States of America and the Government of the United Kingdom 

of Great Britain and Northern Ireland; 

Desiring to amend in certain respects the Agreement between the Government of the United 

States of America and the Government of the United Kingdom of Great Britain and Northern 

Ireland for Cooperation on the Uses of Atomic Energy for Mutual Defence Purposes, signed at 

Washington on July 3, 1958, as amended (herein referred to as the "Agreement"); 

Have agreed as follows: 

ARTICLE 1 

The Preamble of the Agreement shall be amended by inserting the following paragraph after 

"Considering that both countries have made substantial progress in the development of atomic 

weapons;": 

"Reaffirming that the spread of atomic weapons technology, potentially including 

State and sub-State actors, imperils the defense and security ofboth nations;". 

ARTICLE2 

Article III of the Agreement shall be amended by: 

a) Replacing paragraph A in its entirety with the following: 

"The Government of the United States may authorize, subject to terms and conditions acceptable 

to the Government of the United States, persons (1) to transfer by sale to the Government of the 

United Kingdom or persons designated by the Government of the United Kingdom submarine 

nuclear propulsion plants and parts thereof, including spare parts, replacement cores, and fuel 

elements, as may be agreed by the Parties, and (2) to communicate to the Government of the 

United Kingdom or persons designated by the Government of the United Kingdom (or to both) 

information as is necessary for the design, manufacture, and operation of submarine 

nuclear propulsion plants."; 

b) Substituting in the first sentence of paragraph B, "any submarine nuclear propulsion 

plant transferred pursuant to paragraph A of this Article, on such terms and conditions 

as may be agreed" in place of "the submarine nuclear propulsion plant transferred 

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pursuant to paragraph A of this Article, during the ten years following the date of entry 

into force of this Agreement on such terms and conditions as may be agreed"; 

c) Deleting "during such period" from the second sentence of paragraph B; 

d) Substituting in the first sentence of paragraph C, "a price based on the fair 

market price of comparable enriched uranium sold in the U.S. domestic market 

at the time of the sale" in place of "the United States Atomic Energy Commission's 

published charges applicable to the domestic distribution of such material in effect 

at the time of the sale"; 

e) Substituting in the second sentence of paragraph C, "a price based on the fair 

market price of comparable enriched uranium sold in the U.S. domestic market at the 

time of the purchase" in place of "the applicable price of the United States Atomic 

Energy Commission for the purchase of enriched uranium in effect at the time of 

purchase of such enriched uranium"; 

f) Substituting in paragraph D, "The Parties may exchange classified information on 

methods of reprocessing fuel elements of the type utilized in any propulsion plant 

transferred" in place of "The Parties will exchange classified information on methods of 

reprocessing fuel elements of the type utilized in the propulsion plant to be 

transferred"; 

g) Substituting in paragraph E, "after any propulsion plant or parts thereof, including 

spare parts, replacement cores or fuel elements, transferred under this Article are 

taken outside of the United States" in place of "after the propulsion plant or parts 

thereof, including spare parts, replacement cores or fuel elements are taken outside 

the United States". 

ARTICLE 3 

Article III bis of the Agreement shall be amended by substituting "2024" for 

"20 14" throughout the Article. 

ARTICLE4 

Article V of the Agreement shall be amended by substituting in paragraph C, "pursuant to this 

Agreement for other than the preparation or implementation of defense plans, including the 

evaluation of potential enemy capabilities, in the mutual interests of the two countries" in place 

of "pursuant to this Agreement for other than the preparation or implementation of defense plans 

in the mutual interests of the two countries". 

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ARTICLES 

Article IX of the Agreement shall be amended by: 

a) Substituting in the chapeau of paragraph A, "derived from any submarine propulsion 

plant" in place of "derived from the submarine propulsion plant"; 

b) Substituting in paragraph B.l, "any submarine propulsion plant, spare parts or 

equipment" in place of "the submarine propulsion plant, spare parts or equipment"; 

c) Substituting in paragraph B.2, "that any submarine propulsion plant or any material or 

equipment transferred" in place of "that the submarine propulsion plant or any 

material or equipment transferred"; 

d) Substituting in paragraph D. 1, "any submarine propulsion plant, material or 

equipment transferred" in place of "the submarine propulsion plant, material or 

equipment transferred". 

ARTICLE6 

Article XI of the Agreement shall be amended by substituting in paragraph B, "with the security 

designation of United Kingdom 'Restricted' or equivalent or United States Confidential or 

higher" in place of "with the security designation of United Kingdom 'Restricted' or United 

States Confidential or higher". 

ARTICLE7 

This Amendment shall enter into force on the date of the last written notification between the 

Governments, through diplomatic channels, of the completion of all statutory and constitutional 

requirements for the entry into force of this Amendment. 

IN WITNESS WHEREOF, the undersigned, duly authorized by their respective Governments, have 

signed this Amendment. 

Done at Washington, in duplicate, this _ _,2=-=l.=----- day of July, 2014. 

FOR THE GOVERNMENT OF THE 

UNITED STATES OF AMERICA: 

FOR THE GOVERNMENT OF THE 

UNITED KINGDOM OF GREAT BRITAIN 

AND NORTHERN IRELAND: 

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