Published by the Stockton Center for International Law
ISSN 2375-2831
U.S. Position on the U.N. Convention
on the Law of the Sea
Office of the Staff Judge Advocate
97 INTL L. STUD. 81 (2021)
Volume 97 2021
International Law Studies 2021
81
The U.S. Position on the U.N. Convention
on the Law of the Sea (UNCLOS)
Office of the Staff Judge Advocate, U.S. Indo-Pacific Command
Prepared by Captain Raul (Pete) Pedrozo, JAGC, U.S. Navy (Ret.); edited by Com-
mander Matthew Wooten, JAGC, U.S. Navy and Lieutenant Commander Miles Young, U.S.
Coast Guard; and approved by Colonel Thomas McCann, U.S. Marine Corps.
The thoughts and opinions expressed are not
necessarily those of the U.S. government,
the U.S. Department of the Navy, or the U.S. Naval War College.
The U.S. Position on UNCLOS Vol. 97
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T
he U.S. position on the 1982 U.N. Convention on the Law of the Sea
(UNCLOS) is set forth below.
The Convention. UNCLOS, together with its Part XI Implementing Agree-
ment (IA),
1
establishes a comprehensive set of rules governing the uses of
the world’s oceans, including the airspace above and the seabed and subsoil
below. After decades of dispute and negotiation, the Convention reflects
consensus on the extent of jurisdiction that States may exercise off their
coasts and allocates rights and duties among all States. It carefully balances
the interests of coastal States in controlling resource activities off their coasts
and the interests of all States in protecting the freedom to use the oceans
without undue interference. UNCLOS and the Part XI IA have both entered
into force and currently have 168 and 150 Parties, respectively.
2
Despite be-
ing a major participant in the negotiation process, the United States did not
sign the Convention when it was opened for signature in 1982 and is cur-
rently not a Party to UNCLOS or Part XI IA.
President Reagan’s Objections. Upon the adoption of the Convention in
1982, the United States and other industrialized nations declined to sign or
ratify UNCLOS, though they supported most of its provisions, because they
could not accept the Part XI regime established to govern deep seabed min-
ing in areas beyond the continental shelf. Specifically, the United States iden-
tified the following problems with Part XI: (1) provisions that would actually
deter future development of deep seabed mineral resources, when such de-
velopment should serve the interest of all countries; (2) a decision-making
process that would not give the United States or other industrialized nations
a role that fairly reflects and protects their interests; (3) provisions that would
allow amendments to enter into force for the United States and other nations
without their approval; (4) stipulations relating to mandatory transfer of pri-
vate technology and the possibility of national liberation movements sharing
in monetary benefits from deep seabed mining; and (5) the absence of as-
sured access for future qualified deep seabed miners to promote the devel-
opment of these resources.
3
1983 U.S. Ocean Policy Statement.
4
Following adoption of the Conven-
tion in 1982, it has been the policy of the United States to act in a manner
consistent with its provisions relating to traditional uses of the oceans and
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to encourage other countries to do likewise. Since the end of World War II,
the United States has supported efforts to develop a widely recognized legal
order that will, inter alia, facilitate peaceful, international uses of the oceans
and provide for equitable and effective management and conservation of
marine resources. Therefore, although the United States did not sign UN-
CLOS, it recognized that the Convention contains provisions with respect
to traditional uses of the oceans that generally confirm existing maritime law
and practice and fairly balance the interests of all States. Accordingly, in
March 1983, President Reagan announced three decisions to promote and
protect U.S. oceans interests in a manner consistent with the fair and bal-
anced results in UNCLOS and customary international law.
First, the President declared that the United States would “accept and
act in accordance with the balance of interests relating to traditional uses of
the oceanssuch as navigation and overflight.” In return, the United States
would recognize the rights of other States in their coastal waters, as reflected
in UNCLOS, so long as coastal States recognized the U.S. and other nations’
rights and freedoms under international law. Second, the President indicated
that the United States would “exercise and assert its navigation and overflight
rights and freedoms on a worldwide basis in a manner that is consistent with
the balance of interests” reflected in UNCLOS. However, the President
warned that the United States would not “acquiesce in unilateral acts of other
States designed to restrict the rights and freedoms of the international com-
munity in navigation and overflight and other related high seas uses.” Third,
the President proclaimed U.S. sovereign rights and jurisdiction over a 200-
nautical mile (nm) Exclusive Economic Zone (EEZ) consistent with the pro-
visions of UNCLOS.
5
Of note, the Proclamation specifically provides that
“all States enjoy the high seas freedoms of navigation, overflight, the laying
of submarine cables and pipelines, and other internationally lawful uses of
the sea,” within the EEZ.
6
Part XI Implementing Agreement. Recognizing that UNCLOS would not
receive universal acceptance without modifications to Part XI, the UN Sec-
retary-General convened a series of informal consultations between July
1990 and July 1994, which resulted in the adoption of the Part XI IA. Article
2 provides that UNCLOS and the IA shall be interpreted and applied to-
gether as a single instrument.
7
The legally binding changes set forth in the
IA met all U.S. objections to Part XI, and as a result, the United States and
all other major industrialized nations signed the IA.
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Transmittal to the Senate for Advice and Consent. The President has the
power, by and with the advice and consent of the Senate, to make Treaties,
provided two thirds of the Senators present concur.
8
The United States has
basic and enduring national interests in the oceans and has consistently taken
the view that the best way to protect these interests is through a widely ac-
cepted international framework governing uses of the sea. Accordingly, with
the successful modifications to Part XI, President William Clinton
The Part XI Implementing Agreement
(1) Overhauls the Part XI decision-making procedures to accord the
United States, and other nations with major economic interests at stake,
adequate influence over future decisions on possible deep seabed min-
ing;
(2) Guarantees the United States a seat on the critical executive body
and requires a consensus of major contributors for financial decisions;
(3) Restructures the deep seabed mining regime along free market prin-
ciples and meets the U.S. goal of guaranteed access by U.S. firms to deep
seabed minerals on the basis of reasonable terms and conditions; (4)
Eliminates mandatory transfer of technology and production controls;
(5) Scales back the structure of the International Seabed Authority
(ISBA), which administers the mining regime, and links the activation
and operation of institutions to the actual development of concrete
commercial interest in seabed mining;
(6) Together with its allies, the United States could block the Enterprise,
the ISBA’s operating arm, from being activated, and any mining activi-
ties conducted by the Enterprise are subject to the same requirements
that apply to private mining companies;
(7) Does not require States to finance the Enterprise, and subsidies in-
consistent with the General Agreement on Tariffs and Trade are pro-
hibited; grandfathers the seabed mine site claims established on the basis
of the exploration work already conducted by companies holding U.S.
licenses; and
(8) Strengthens the provisions requiring consideration of the potential
environmental impacts of deep seabed mining.
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transmitted UNCLOS and the Part XI IA to the Senate for advice and con-
sent on October 7, 1994.
9
Some of the benefits of the Convention identified by the President in-
clude: (1) UNCLOS advances U.S. interests as a global maritime power by
preserving the right of the U.S. military to use the world's oceans to meet
national security requirements and of commercial vessels to carry sea-going
cargoes; (2) UNCLOS advances U.S. interests as a coastal State by providing
for a 200-nm EEZ; (3) UNCLOS promotes continuing improvement in the
health of the world's oceans; (4) UNCLOS establishes clear criteria and pro-
cedures to promote access to marine areas, including coastal waters, for ma-
rine scientific research activities; (5) UNCLOS fairly balances the respective
interests of coastal and maritime States; and (6) UNCLOS’s dispute settle-
ment provisions provide mechanisms to enhance compliance by Parties with
its provisions.
The President’s transmittal letter also highlights the reforms to Part XI
achieved by the IA, which fundamentally changes the Convention’s deep
seabed mining regime. Accordingly, the President recommended that the
Senate give early and favorable consideration to the Convention and to the
IA and give its advice and consent to accession to the Convention and to
ratification of the IA. Despite widespread bipartisan support for UNCLOS,
the Senate Foreign Relations Committee (SFRC) did not hold hearings on
the Convention in 1994.
Senate Hearings. President George W. Bush reinvigorated efforts to join
the Conventions in 2004. In March, the SFRC, under new leadership, held
hearings and recommended unanimously that the full Senate give its advice
and consent to accession to the Convention and ratification of the Agree-
ment.
10
The full Senate did not vote, however, on the Committee’s recom-
mendation. Since the full Senate took no action, Senate rules required the
return of the Convention and the IA to the SFRC at the end of the 108
th
Congress.
On May 19, 2007, President Bush urged the Senate to approve UNCLOS
during the first session of the 110th Congress, stating that: “joining [the Con-
vention] will serve the national security interests of the United States, includ-
ing the maritime mobility of our armed forces worldwide. It will secure U.S.
sovereign rights over extensive marine areas, including the valuable natural
resources they contain. Accession [to the Convention] will promote U.S. in-
terests in the environmental health of the oceans. And it will give the United
States a seat at the table when the rights that are vital to our interests are
The U.S. Position on UNCLOS Vol. 97
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debated and interpreted.”
11
Once again, the SFRC held additionally hearings
and recommended that the full Senate give its advice and consent.
12
Not-
withstanding the President’s strong support, the full Senate did not take up
the matter during the 110th Congress.
UNCLOS was debated again during the 112th Congress. On May 23,
2012, Secretary of State Hilary Clinton, Secretary of Defense Leon Pan-
etta, and Joint Chiefs of Staff Chairman General Martin Dempsey testified
before the SFRA and urged swift ratification of UNCLOS. On June 14,
2012, the SFRC hosted a “24 Star” hearing where six four-star generals and
admirals testified in support of UNCLOS accession. Finally, on June 28,
2012, the U.S. Chamber of Commerce, the American Petroleum Insti-
tute, the National Association of Manufacturers, and Verizon Communica-
tions testified before the SFRC arguing that joining the treaty would advance
U.S. economic interests.
13
Despite this overwhelming support, Republican
opposition doomed U.S. accession and ratification, as thirty-four Republican
Senators signed a letter to the Chairman of the SFRC indicating that they
would vote against U.S. accession, effectively killing Senate action on the
Convention in the 112th Congress.
14
Opposition to UNCLOS. Opponents to UNCLOS argue that the costs
associated with joining the Convention outweigh the benefits, and Article
309
15
forbids States to submit reservations or exceptions exempting itself
from the Convention’s controversial provisions. For example, the conserva-
tive Heritage Foundation argued that: (1) if it joins the Convention, the
United States “will be required . . . to transfer royalties generated from hy-
drocarbon production of the U.S. ‘extended continental shelf’ (ECS) to the
International Seabed Authority for redistribution to developing and land-
locked countries;” (2) the United States does not have to be a Party to UN-
CLOS in order to exploit its ECS; (3) the United States does not have to join
the Convention to mine the deep seabed; (4) “U.S. accession . . . would ex-
pose the . . . [United States] to lawsuits regarding virtually any maritime ac-
tivity . . .” which would be expensive to defend, and “any adverse judgment
rendered by an UNCLOS tribunal would be final, could not be appealed,
and would be enforceable in U.S. territory;” and (5) the United States does
not have to be a Party to UNCLOS to “protect and preserve its navigational
rights and freedoms” because the navigational provisions of UNCLOS cod-
ify customary international law that is binding on all nations.
16
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Department of Defense Support. UNCLOS supports implementation of
the National Security Strategy, provides legal certainty in the world’s oceans,
and preserves essential navigation and overflight rights. Becoming a Party to
UNCLOS would help preserve the Department of Defense's ability to move
forces on, over, and under the world’s oceans, whenever and wherever
needed. UNCLOS establishes stable maritime zones; codifies innocent pas-
sage, transit passage, and archipelagic sea lanes passage rights; recognizes
unrestricted military activities on the high sea; works against “jurisdictional
creep” by preventing coastal States from expanding their own maritime
zones; and reaffirms sovereign immunity of warships, auxiliaries and govern-
ment aircraft.
17
The U.S. Position on UNCLOS Vol. 97
88
1. Agreement Relating to the Implementation of Part XI of the United Nations Con-
vention on the Law of the Sea of 10 December 1982, July 28, 1994, entered into force July 28,
1996, 1836 U.N.T.S. 3, 33 I.L.M. 1309 (1982) [hereinafter Part XI IA].
2. Status of the Convention and of the Related Agreements, https://www.un.org/
Depts/los/.
3. Statement on United States Participation in the Third United Nations Conference
on the Law of the Sea, Jan. 29, 1982, https://www.reaganlibrary.gov/research/
speeches/12982b; Statement on United States Actions Concerning the Conference on the
Law of the Sea, Jul. 9, 1982, https://www.reaganlibrary.gov/research/speeches/70982b.
4. Statement on United States Oceans Policy, Mar. 10, 1983, https://www.reaganli-
brary.gov/archives/speech/statement-united-states-oceans-policy.
5. Proclamation 5030Exclusive Economic Zone of the United States of America,
Mar. 10, 1983, https://www.reaganlibrary.gov/research/speeches/31083d.
6. Id.
7. Part XI IA, supra note 1, art. 2.
8. U.S. Constitution, art. II, sec. 2.
9. S. Treaty Doc. 103-39, United Nations Convention on the Law of the Sea, with
Annexes, and the Agreement Relating to the Implementation of Part XI of the United Na-
tions Convention on the Law of the Sea, with Annex, 103rd Cong., 2nd Sess., Oct. 7, 1994.
10. S. Exec. Rpt. 10810, United Nations Convention on the Law of the Sea, Report
to accompany Treaty Doc. 10339, 108th Cong, 2nd Sess., Mar. 11, 2004.
11. S. Exec. Rpt. 1109, Convention on the Law of the Sea, Report together with Mi-
nority Views to accompany Treaty Doc. 10339, 110th Cong., 1st Sess., Dec. 19, 2007.
12. Id.
13. S. Hearing 112654, The Law of the Sea Convention (Treaty Doc. 10339), Hearing
Before the Committee on Foreign Relations, United States Senate, 112th Cong., 2nd Sess.,
May 23, June 14, and June 28, 2012.
14. Julian Ku, US Will Not Join the Law of the Sea Treaty (At Least Not This Year), O
PINIO
JURIS, (July 16, 2012), http://opiniojuris.org/2012/07/16/us-will-not-join-the-law-of-the-
sea-treaty-at-least-not-this-year/.
15. United Nations Convention on the Law of the Sea art. 309, Dec. 10, 1982, 1833
U.N.T.S. 397, provides “no reservations or exceptions may be made to this Convention
unless expressly permitted by other articles of this Convention.
16. Steven Groves, The Law of the Sea: Costs of U.S. Accession to UNCLOS, T
HE HERIT-
AGE
FOUNDATION (June 14, 2012), https://www.heritage.org/testimony/the-law-the-sea-
costs-us-accession-unclos.
17. The Convention on the Law of the Sea, N
AVY JAG, https://www.jag.navy.mil/or-
ganization/code_10_law_of_the_sea.htm.