U.S. already abides by UNCLOS as a matter of customary international law and domestic policy
Even though U.S. has not ratified UNCLOS, it still has committed itself to abiding by its principles in two ways: through numerous policy statements and laws drafted in accordance with UNCLOS and committing the U.S. to abiding by it; and due to the fact that the Law of the Sea has become customary international law.
Quicktabs: Arguments
We also should remember that the United States already has been abiding by the Law of the Sea Convention since President Reagan's 1983 Statement of Oceans Policy. In addition, the United States is a party to the 1958 Convention on the Territorial Sea and Contiguous Zone, a predecessor to the Law of the Sea Convention. Many of the provisions of the 1958 Convention are less advantageous to the United States than comparable provisions in the Law of the Sea Convention.
Given that the United States has been abiding by all but one provision of the Treaty for the last 21 years and that we are already a party to a less advantageous international agreement on ocean law, dire predictions about the hazards to our sovereignty of joining the Law of the Sea Convention ring particularly hollow.
Ultimately, the Convention settled on an outer limit for the continental shelf of 200 miles,38 which satisfied many geographically disadvantaged states (those that do have a naturally wide shelf), but also allowed special considerations for states with naturally broad shelves by granting them a potentially deeper shelf of up to 350 miles instead of the standard 200.39 With the exception of the special considerations, Convention provisions limiting the continental shelf echoed those in the 1964 Convention on the Continental Shelf which set the limit as 200 miles and gave coastal states exclusive rights over its continental shelf.40 The United States is a party to the 1964 Convention on the Continental Shelf and thus bound by these limits.41 However, if the United States qualifies for the special considerations provided for in the Convention for states with naturally broader shelves, it has the potential to increase its continental shelf.42
U.S. law and practice are already generally compatible with the Convention. Except [with respect to the enforcement of certain deep seabed mining decisions, which would be necessary at some point after U.S. accession], the United States does not need to enact new legislation to supplement or modify existing U.S. law, whether related to protection of the marine environment, human health, safety, maritime security, the conservation of natural resources, or other topics within the scope of the Convention. The United States, as a party, would be able to implement the Convention through existing laws, regulations, and practices (including enforcement practices), which are consistent with the Convention and which would not need to change in order for the United States to meet its Convention obligations….[t]he Convention would not create private rights of action or other enforceable rights in U.S. courts, apart from its provisions regarding privileges and immunities to be accorded to the Convention’s institutions.
The United States did not sign UNCLOS,76 but remains a party to Geneva LOS.77 UNCLOS superseded the Geneva LOS conventions as to parties of both treaties.78 Those parties include the major players in the fight against maritime piracy. Somalia, Kenya, Seychelles, Yemen, Denmark, France, Germany, the United Kingdom, China, India, and Japan are all parties to UNCLOS.79 Indeed, UNCLOS currently has 160 state parties,80 a sufficiently large proportion of all states for it to constitute a codification of customary international law.81 Additionally, submission for ratification gives UNCLOS force as between the United States and other state parties, and the United States has stated its intention to respect the rules of UNCLOS on “navigation and other matters.”82
Paradoxically, the critics seem not to have noticed that the less protective 1958 Conventions already binding on the United States, unlike the 1982 Convention, contain no denunciation clause. Unless the United States adheres to the 1982 Convention, which would automatically supercede our obligations under the 1958 Conventions, we would be faced with substantial uncertainty about revision or withdrawal from the 1958 Conventions. Under the 1958 Conventions, a request for revision of the Conventions would simply be referred to the United Nations General Assembly, which would then “decide upon the steps, if any, to be taken in respect of such requests.” And, in the absence of a denunciation clause in the 1958 Conventions, it would be unclear under international law whether the United States would be able to lawfully withdraw at all from these Conventions. In sharp contrast, not only will adherence to the 1982 Convention automatically supercede outmoded United States obligations under the 1958 Conventions, but the 1982 Convention does contain a denunciation clause. Under Article 317 of the Convention the United States may leave the Convention after one year following a simple denunciation. Thus, if the horribles espoused by the critics were to occur, the United States could simply denounce the Convention and withdraw;
In spite of the fact that the United States has not formally adopted UNCLOS, the applicability of the Convention's Articles governing sovereignty over the continental shelf to the United States-namely Articles 76 through 85-is for several reasons not seriously in dispute. First, many writers contend that Article 76 has become a defacto part of customary international law because of its wide adoption-either via ratification of the Convention itself or via unilateral laws modeled after the Convention.47
Second, the United States has repeatedly demonstrated its intent to be bound by the provisions of UNCLOS not relating to Part XI, which prohibits mining on the deep-sea beds. For instance, after refusing to sign the treaty in 1983, President Reagan announced his intention that the United States nevertheless act in accordance with UNCLOS.48 Although it never reached a floor vote, President Clinton referred UNCLOS to the Senate Committee on Foreign Relations in 1994.49 The Bush administration similarly pushed for ratification of the Convention, likely because it found "that the Convention's navigational and national security benefits far outweigh any costs to the U.S."50 UNCLOS has found similar support in the decisions of the federal courts.51
Some critics seem also to act as though United States non-adherence would prevent the Convention from coming into effect, that we can engage in further renegotiation, or that we can simply ignore the Convention in our relations with other nations. None of these assumptions is true. The 1982 Convention is in force for 145 nations and is today the basic legal regime for the world’s oceans. For example, whether or not the United States adheres to the Convention, the Seabed Authority will remain in place. The only difference will be that the United States will gratuitously deprive itself of its deep seabed mining industry and our ability to control the rules and regulations, amendments and any distribution of revenues to states parties in the actions of the Authority. And following a major renegotiation at United States insistence before the Convention went into force (a renegotiation that met all United States conditions established by President Reagan for United States acceptance) there is zero possibility of further renegotiation. Any amendments from this point forward can only come from the participation of states parties using normal Convention provisions for amendment. Similarly, whether or not we are a party to the Convention, when the United States seeks to mobilize its allies around an important initiative such as the Proliferation Security Initiative, it will quickly find, as it has, that our allies will insist on compliance with the Convention provisions;