United States v. California (381 U.S. 139)/Opinion of the Court

The present case requires us to determine the extent of submerged lands granted to the State of California by the Submerged Lands Act of 1953, and in particular to declare whether specified bodies of water on the California coast are 'inland waters' within the meaning of that Act. A substantial amount of background is necessary to place the issues in perspective.

THE SETTING OF THE CASE.

This is a suit begun in 1945, brought by the United States against California to determine dominion over the submerged lands and mineral rights under the three-mile belt of sea off the coast of California. In 1947 the Court decreed:

'The United States of America is now, and has been at all     times pertinent hereto, possessed of paramount rights in, and      full dominion and power over, the lands, minerals and other      things underlying the Pacific Ocean lying seaward of the      ordinary low-water mark on the coast of California, and      outside of the inland waters, extending seaward three      nautical miles *  *  *. The State of California has no title     thereto or property interest therein.' United States v.      California, 332 U.S. 804, 805, 68 S.Ct. 20, 21, 92 L.Ed. 382,     Order and Decree.

After the entry of this decree, the United States asked that the lands awarded to it be defined in greater detail in certain areas where there was substantial oil well activity, and which California asserted lay within inland waters. The Court appointed a Special Master, and directed him to consider seven specified segments of the California coast to determine the line of ordinary low water and the outer limit of inland waters. These segments included various bays, and, as the problem evolved, the so-called 'overall unit area' consisting of the waters inside a line encompassing the islands off the shore of southern California, some as far as 50 miles out. The Special Master's Report, generally favoring the position of the United States, was filed with this Court in November 1952, 344 U.S. 872, 73 S.Ct. 163, 97 L.Ed. 676. He adopted as his criteria for defining inland waters those applied by the United States in the conduct of its foreign affairs as of the date of the California decree, October 27, 1947-in particular, a rule that only a bay having a closing line across its mouth no more than 10 miles in length and enclosing a sufficient water area to satisfy the so-called Boggs formula would be inland water, with the qualification that a bay which had been historically considered inland water would so continue. Both parties noted their exceptions to the Report, but before any further action was taken, Congress enacted the Submerged Lands Act.

The Submerged Lands Act grants to the State title to and ownership of the lands beneath navigable waters within the boundaries of the respective States.' § 3(a). 'Boundaries' includes the seaward boundaries of a State 'as they existed at the time such State became a member of the Union, or as heretofore approved by the Congress,' but subject to the limitation that

'in no event shall the term 'boundaries' * *  * be interpreted      as extending from the coast line more than three geographical      miles into the Atlantic Ocean or the Pacific Ocean, or more      than three marine leagues into the Gulf of Mexico.' § 2(b).

'Coast line' is then defined as the composite 'line of ordinary low water along that portion of the coast which is in direct contact with the open sea and the line marking the seaward limit of inland waters.' § 2(c). For States having no previously approved seaward boundaries the Act provides that '(a)ny State admitted subsequent to the formation of the Union which has not already done so may extend its seaward boundaries to a line three geographical miles distant from its coast line * *  * .' § 4.

Thus the Act effectively grants each State on the Pacific coast all submerged lands shoreward of a line three geographical miles from its 'coast line', derivatively defined in terms of 'the seaward limit of inland waters.' 'Inland waters' is not defined by the Act.

In a later measure related to the Submerged Lands Act, Congress declared that the United States owned all submerged land in the continental shelf seaward of the lands granted to the States. Outer Continental Shelf Lands Act, 67 Stat. 462, 43 U.S.C. § 1331 et seq.

The passage of the Submerged Lands Act marked the beginning of a long halt in the proceedings in this case. Depth of California's coastal waters increases very rapidly, and as of May 22, 1953, the date of enactment, it was impractical to drill for oil except close to the shore. By granting to California the mineral rights in the three-mile belt, the Act vested in California all the interests that were then thought to be important, and no further action was taken on the Special Master's Report. That Report was neither adopted, modified, nor rejected by this Court, but was simply allowed to lie dormant. By 1963, however, drilling techniques had improved sufficiently to revitalize the importance of the demarcation line between state and federal submerged lands. The United States filed an amended complaint reviving the Special Master's Report and redescribing the issues as modified by the Submerged Lands Act; both the United States and California filed new exceptions to the Report, and the case is now ready for decision.

The basic contention of the United States is that the Act simply moved the line of demarcation out three miles from the line established by the California decree. Therefore, contends the United States, the Special Master's Report on the line of ordinary low water and the outer limit of inland waters as used in the California decree is just as relevant now as it was before Congress acted, and, with slight modifications, the line drawn by the Special Master should be taken as the 'coast line' for purposes of the Submerged Lands Act. California asserts that whereas the Special Master determined inland waters to be those which the United States would have claimed as such for purposes of international relations, the Submerged Lands Act used the term in an entirely different sense to mean those waters which the States historically considered to be inland-in California's case, those waters which the State considered to be inland at the time it entered the Union. Therefore, according to California, the line drawn in the Special Master's Report was determined under standards wholly foreign to the Submerged Lands Act.

The focal point of this case is the interpretation to be placed on 'inland waters' as used in the Act. Since the Act does not define the term, we look to the legislative history.

LEGISLATIVE HISTORY REVEALS THAT CONGRESS MEANT TO LEAVE THE DEFINITION OF INLAND WATERS TO THE COURTS.

Two changes relevant for our purposes were made in the bill which became the Submerged Lands Act between the time it was sent to the Senate Committee on Interior and Insular Affairs and the time of its passage.

(1) As first written, the bill defined inland waters to include

'all estuaries, ports, harbors, bays, channels, straits,     historic bays, and sounds, and all other bodies of water      which join the open sea.'

This definition was removed by the Senate Committee.

(2) The bill originally contained no limitation on the extent of historic boundaries that could be claimed. The provision limiting the extent of boundary claims to no more than three geographical miles from the coastline on the Atlantic and Pacific Oceans and three marine leagues on the Gulf of Mexico was added to the bill on the floor of the Senate in the late stages of the debates.

Removal of the definition for inland waters and the addition of the three-mile limitation in the Pacific, when taken together, unmistakably show that California cannot prevail in its cntention that 'as used in the Act, Congress intended inland waters to identify those areas which the states always thought were inland waters.' By deleting the original definition of 'inland waters' Congress made plain its intent to leave the meaning of the term to be elaborated by the courts, independently of the Submerged Lands Act.

In response to substantial objections made in the hearings to the original bill's broad definition of inland waters on grounds that it would prejudice and limit the position which the United States could take in its future conduct of foreign affairs, Senator Cordon, the manager of the bill, recommended and obtained elimination of the definition. The Committee Report which he authored explained:

'The words 'which include all estuaries, ports, harbors,     bays, channels, straits, historic bays, and sounds, and all      other bodies of water which join the open sea' have been      deleted from the reported bill because of the committee's      belief that the question of what constitutes inland waters      should be left where Congress finds it. The committee is     convinced that the definition neither adds nor takes away      anything a State may have now in the way of a coast and the      lands underneath waters behind it.' S.Rep.No.133, 83d Cong.,      1st Sess., 18, U.S.Code Cong. and Adm.News 1953, p. 1493.

The committee's understanding that the measure 'neither adds nor takes away anything a State may have now in the way of a coast and the lands underneath waters behind it,' appears to be an acceptance of 'inland waters' as used in the California and prior Court opinions, whatever that usage might have been. Various different concepts of inland waters were asserted during the Senate Hearings, based on such elements as the depth of the water, the width of opening of a coastal indentation, the Boggs formula, and the common designation of bodies of water as bays, sounds, straits, etc. When it became clear that the question had highly technical aspects (see, e.g., n. 5, supra) and was one on which differences would arise, the Senate Committee adopted the expedient solution of leaving the matter just as it had found it, neither accepting nor rejecting any particular rule or formula. It intended to leave unaffected the judicial view of inland waters and the judicial responsibility for particularizing it.

Reference to Senator Cordon's request to the Senate Committee for deletion of the objectionable clause confirms that understanding. He said:

'The matter of inland waters is one that has been defined     time and time again by the courts, not, I believe, in any one      all-inclusive definition, but it was felt (by those who      objected to the definition during the hearings) that the use      of these words were (sic) an attempted legislative definition      of the term 'inland waters,' and it was inadvisable for us in      this bill, which is a transfer of title, to attempt to make      law in the other field of what is or is not inland water.

'The use of the language, it was felt, would probably raise     questions that have not been raised, whereas the present      definitions are in the decisions and available to the court.'

'Senator MALONE. The inland waters had a special master for     that particular job, did they not, and that is now under      consideration, that is, his report is under consideration by      the Supreme Court?

'Senator CORDON. With respect to California, and a portion of     California coast; yes. Senate Hearings 1304-1305.

Shortly thereafter there follows a virtually conclusive statement:

'Senator CORDON. It was not the chairman's view that we were     attempting to draw a line delimiting inland waters, but that      we were using a term that is well known in the law and is      defined by the Court in the California case, for instance,      and in the Louisiana case, I assume. That line might still be     defined, even though the area may not now have the same legal      status as it had before.' Id., at 1376. (Emphasis added.)

California fastens on a statement made in the Committee Report with regard to the eliminated definition:

'The elimination of the language, in the committee's opinion,     is consistent with the philosophy of the Holland bill to      place the States in the position in which both they and the      Federal Government thought they were for more than a century      and a half, and not to create any situations with respect      thereto.' S.Rep.No. 133, 83d Cong., 1st Sess., 18.

From this California reasons that 'inland waters' must have been intended to encompass all waters which the States 'thought' were inland waters, for that is the only way in which the Act can now be interpreted to effectuate fully its supposed 'philosophy' of granting to the States all submerged lands within their historic boundaries.

If such a view of the bill's purpose is accepted as of the time that the Committee Report was written, there is, nonetheless, no inconsistency whatsoever between that purpose and a legislative intent to leave the definition of inland waters to the courts without restriction; at that time the limitation on boundary claims had not yet been incorporated into the Act; thus as the Act was then written, States could have claimed all submerged lands within their historic boundaries, no matter how 'inland waters' was defined. The definition would have affected only those States which, not having adequate pre-existing seaward boundaries, chose to extend their boundaries three miles from the coastline pursuant to § 4 of the Act. As stated by Senator Cordon during the Hearings,

'this bill has two approaches to a determination of the area     of its application. The first approach is that of the     boundaries of the States when they came into the Union;      second, an election to any State that has not done so to      extend its boundary 3 geographical miles from its present      coastline, as that term is described in the present tense in      the bill.' Senate Hearings 1374.

Only with the adoption of the three-mile limitation on the Atlantic and Pacific Oceans and the three-league limitation in the Gulf of Mexico did the interpetations of historic boundaries and inland waters become operationally related, and any inconsistency thus created between the limitation and the prior philosophy of the Act shows only that, to the extent the limitation would come into play, the philosophy was modified. This amendment was one of very few made to the bill as reported by the Senate Committee, and came as the result of continuous criticism throughout the course of the debates that the extent of the grant was indefinite, and that coastal States could engage in a 'claiming race' for submerged lands. California points to language stating that adoption of the limitation worked no significant change in the bill. 99 Cong.Rec. 4114-4116 (remarks of Senator Holland). But such statements simply reflect the understanding of the major supporters of the bill that no States other than Texas and Florida (on its Gulf side) had provable claims beyond three miles, and that the claims of those two States did not go beyond three leagues. If such were the case, the limitation could indeed be thought to have no effect, for no state boundaries would run afoul of it, and the vast grant of submerged lands up to three miles along the length of the Atlantic and Pacific coasts, and three leagues, subject to historical proof, in the Gulf of Mexico, would not be impaired. Senator Holland, the author of the bill, proposed the limiting boundary amendment to meet the fears of those Senators who had criticized the indefiniteness of the bill. He explained:

' * *  * I think the amendment has very little effect. But I am     perfectly willing to meet the suggestions of my friends, some      of whom have been opponents, and some of whom have been      supporters of the joint resolution, to the effect that they      would like to have the language more clearly spelled out than      it was in the original measure, to the effect that there is      no intention whatsoever to grant boundaries beyond 3      geographical miles in either the Atlantic or the Pacific, and      that this Congress knows of no possible situation under which      greater boundaries are claimed or could be granted in the      Gulf of Mexico than 3 leagues; and, in that case, this      Congress knows, although this amendment does not indicate it,      that there are but 2 States affected by that particular      situation.' 99 Cong.Rec. 4116.

Senator Holland was aware of California's expansive inland water claims, but thought them altogether untenable.

'Mr. HOLLAND. My understanding is that California has no     provable case beyond 3 miles from its mainland; and that as      to the islands, its provable case would be 3 miles around      each of the islands. I so stated in the hearings on this     matter.

'Mr. DOUGLAS. That is a consummation devoutly to be desired,     but I am not at all satisfied that that it what the Senator's      joint resolution would accomplish, because the coastline is      not fully and clearly defined.

'Mr. HOLLAND. Under the joint resolution, no such contention     could be maintained.

'Mr. DOUGLAS. Is the Senator certain of that?

'Mr. HOLLAND. That is what I believe, and that is what every     legal authority I have consulted on the subject believes. Incidentally, the only reason why there was some thought to     the contrary was some wording in the original joint      resolution, which has been omitted, which would have made the      outer boundary of inland waters farther out than that which      is now provided by the joint resolution. The joint resolution     simply continues the outer boundary of inland waters pursuant      to the decisions of the Supreme Court already made. * *  *

'The Senator from Florida knows full well that if the United     States Supreme Court should change its mind as to what      constituted the outer limits of inland waters, and should      change it to a sufficient degree, it could open up, not only under this joint resolution, but      of its own initiative, questions which would reach out much      farther than anything we have been talking about here.

'The Senator from Florida believes that the laws, as     announced over and over and over again by the Supreme Court,      as to the delimitation of inland waters, are sufficiently      fixed, definite, and certain so that it would require a      complete, cataclysmic change of the Supreme Court's      philosophy in that field to afford any hope for an extension      of the boundaries of the good State of California so that      they would go out beyond the islands as to all areas      contained within an outer line. There is no way for us to     foreclose the Supreme Court from changing its mind. It might     change its mind with reference to inland waters and their      delimitation. But failing such change, the Senator from     Florida cannot see how, under this joint resolution, there      could possibly be any serious question affecting California      or any other State.' 99 Cong.Rec. 2756-2757.

Senator Holland did not wish to foreclose California from arguing (as it has done both here and before the Special Master) that its waters are inland within the appropriate judicial definition, but it was his opinion that no such definition would permit California's claim to all waters shoreward of their remote islands to prevail. Congress could have defined inland waters as it wished for the purely domestic purposes of the Submerged Lands Act. See United States v. Louisiana, 363 U.S. 1, 30-36, 80 S.Ct. 961, 979-982, 4 L.Ed.2d 1025. It could have adopted California's theory, or the Special Master's theory, or any other. Instead, it chose to leave the definition of inland waters where it found it in the Court's hands. The Act does not reveal a particular intent that courts should broadly interpret 'inland waters' so as to restore California to its historic expectations regardless of what its expectations might be. Indeed, if the Court is to draw any inference from the intent and structure of the Act as to how inland waters should be defined, the most plausible inference would be that Congress, in adopting the three-mile limitation, must have intended some base line to be used other than one dependent upon each State's subjective concept of its inland waters, for such a limitation would prove to have been none at all, as full acceptance of California's claims in the present case would show.

THE MEANING OF 'INLAND WATERS' IN THE SUBMERGED LANDS ACT SHOULD CONFORM TO THE CONVENTION ON THE TERRITORIAL SEA AND THE CONTIGUOUS ZONE.

We turn, then, to determining the judicial definition of 'inland waters.' It immediately appears that the bulk of cases cited by Congressmen during debates on the Submerged Lands Act for the proposition that inland waters have 'been defined time and time again by the courts' deal with interior waters such as lakes and rivers, and provide no assistance in classifying bodies of water which join the open sea. In this latter context no prior case in this Court has ever precisely defined the term. The 1947 California opinion clearly indicated that 'inland waters' was to have an international content since the outer limits of inland waters would determine the Country's international coastline, but the Court did not particularize the definition. It was that task which subsequently led to the appointment of the Special Master.

The Special Master found that there was no internationally accepted definition for inland waters and decided, in those circumstances, that it was the position which the United States took on the question in the conduct of its foreign affairs which should be controlling. He considered the relevant date on which to determine our foreign policy position to be the date of the California decree, October 27, 1947. He therefore rejected the assertion that letters from the State Department written in 1951 and 1952 declaring the then present policy of the United States were conclusive on the question before him. At the same time that decision required the Special Master to consider a great many foreign policy materials dating back to 1793 in an attempt to discern a consistent thread of United States policy on the definition of inland waters. He ultimately decided that as of 1947 the United States had taken the position that a bay was inland water only if a closing line could be drawn across its mouth less than 10 miles long enclosing a sufficient water area to satisfy the Boggs formula.

Since the filing of the Special Master's Report the policy of the United States has changed significantly. Indeed it may now be said that there is a settled international rule defining inland waters. On March 24, 1961, the United States ratified the Convention on the Territorial Sea and the Contiguous Zone (T.I.A.S. No. 5639) and on September 10, 1964, when the requisite number of nations had ratified it, the Convention went into force. For nations which do not use a straight-base-line method to define inland waters (see United Kingdom v. Norway, (1951) I.C.J.Rep. 116), the Convention permits a 24-mile maximum closing line for bays and a 'semicircle' test for testing the sufficiency of the water area enclosed. The semicircle test requires that a bay must comprise at least as much water area within its closing line as would be contained in a semicircle with a diameter equal to the length of the closing line. Unquestionably the 24-mile closing line together with the semicircle test now represents the position of the United States.

The United States contends that we must ignore the Convention on the Territorial Sea and the Contiguous Zone in performing our duty of giving content to 'inland waters' as used in the Submerged Lands Act, and must restrict ourselves to determining what our decision would have been had the question been presented to us for decision on May 22, 1953, the date of enactment. At that time there was no international accord on any definition of inland waters, and the best evidence (although strenuously contested by California) of the position of the United States was the letters of the State Department which the Special Master refused to treat as conclusive.

We do not think that the Submerged Lands Act has so restricted us. Congress, in passing the Act, left the responsibility for defining inland waters to this Court. We think that it did not tie our hands at the same time. Had Congress wished us simply to rubber-stamp the statements of the State Department as to its policy in 1953, it could readily have done so itself. It is our opinion that we best fill our responsibility of giving content to the words which Congress employed by adopting the best and most workable definitions available. The Convention on the Territorial Sea and the Contiguous Zone, approved by the Senate and ratified by the President, provides such definitions. We adopt them for purposes of the Submerged Lands Act. This establishes a single coastline for both the administration of the Submerged Lands Act and the conduct of our future international relations (barring an unexpected change in the rules established by the Convention). Furthermore the comprehensiveness of the Convention provides answers to many of the lesser problems related to coastlines which, absent the Convention, would be most troublesome.

California argues, alternatively to its claim that 'inland waters' embraces all ocean areas lying within a State's historic seaward boundaries, that if Congress intended 'inland waters' to be judicially defined in accordance with international usage, such definition should possess an ambulatory quality so as to encompass future changes in international law or practice. Thus, if 10 years from now the definitions of the Convention were amended, California would say that the extent of the Submerged Lands Act grant would automatically shift, at least if the effect of such amendment were to enlarge the extent of submerged lands available to the States. We reject this open-ended view of the Act for several reasons. Before today's decision no one could say with assurance where lay the line of inland waters as contemplated by the Act; hence there could have been no tenable reliance on any particular line. After today that situation will have changed. Expectations will be established and reliance placed on the line we define. Allowing future shifts of international undertanding respecting inland waters to alter the extent of the Submerged Lands Act grant would substantially undercut the definiteness of expectation which should attend it. Moreover, such a view might unduly inhibit the United States in the conduct of its foreign relations by making its ownership of submerged lands vis-a -vis the States continually dependent upon the position it takes with foreign nations. 'Freezing' the meaning of 'inland waters' in terms of the Convention definition largely avoids this, and also serves to fulfill the requirements of definiteness and stability which should attend any congressional grant of property rights belonging to the United States.

SUBSIDIARY ISSUES.

Once it is decided that the definitions of the Convention on the Territorial Sea and the Contiguous Zone apply, many of the subsidiary issues before us fall into place.

1. Straight Base Lines.-California argues that because the Convention permits a nation to use the straight-base-line method for determining its seaward boundaries if its 'coast line is deeply indented and cut into, or if there is a fringe of islands along the coast in its immediate vicinity,' California is therefore free to use such boundary lines across the openings of its bays and around its islands. We agree with the United States that the Convention recognizes the validity of straight base lines used by other countries, Norway for instance, and would permit the United States to use such base lines if it chose, but that California may not use such base lines to extend our international boundaries beyond their traditional international limits against the expressed opposition of the United States. The national responsibility for conducting our international relations obviously must be accommodated with the legitimate interests of the States in the territory over which they are sovereign. Thus a contraction of a State's recognized territory imposed by the Federal Government in the name of foreign policy would be highly questionable. But an extension of state sovereignty to an international area by claiming it as inland water would necessarily also extend national sovereignty, and unless the Federal Government's responsibility for questions of external sovereignty is hollow, it must have the power to prevent States from so enlarging themselves. We conclude that the choice under the Convention to use the straight-base-line method for determining inland waters claimed against other nations is one that rests with the Federal Government, and not with the individual States.

California relies upon Manchester v. Com. of Massachusetts, 139 U.S. 240, 11 S.Ct. 559, 35 L.Ed. 159, for the proposition that a State may draw its boundaries as it pleases within limits recognized by the law of nations regardless of the position taken by the United States. Although some dicta in the came may be read to support that view, we do not so interpret the opinion. The case involved neither an expansion of our traditional international boundary nor opposition by the United States to the position taken by the State.

2. Twenty-four-mile Closing Rule.-The Convention recognizes, and it is the present United States position, that a 24-mile closing rule together with the semicircle test should be used for classifying boys in the United States. Applying these tests to the segments of California's coast here in dispute, it appears that Monterey Bay is inland water and that none of the other coastal segments in dispute fulfill these aspects of the Convention test. We so hold.

California asserts that the Santa Barbara Channel may be considered a 'fictitious bay' because the openings at both ends of the channel and between the islands are each less than 24 miles. The United States argues that the channel is no bay at all; that it is a strait which serves as a useful route of communication between two areas of open sea and as such may not be classified as inland waters.

By way of analogy California directs our attention to the Breton and Chandleur Sounds off Louisiana which the United States claims as inland waters, United States v. Louisiana, 363 U.S. 1, 66-67, n. 108, 80 S.Ct. 961, 997-998, 4 L.Ed.2d 1025. Each of these analogies only serves to point up the validity of the United States' argument that the Santa Barbara Channel should not be treated as a bay. The Breton Sound is a cul de sac. The Chandleur Sound, if considered separately from the Breton Sound which it joins, leads only to the Breton Sound. Neither is used as a route of passage between two areas of open sea. In fact both are so shallow as to not be readily navigable. California also points to the Strait of Juan de Fuca. That strait is not claimed by the United States as a 'fictitious bay' and it does not connect two areas of open sea.

Evidence submitted to the Special Master on the extent of international use made of the Santa Barbara Channel was sparse. What evidence there was indicated the usefulness of the route, but did not specify whether the ships so using it were domestic or international. California now regards the point as important, for under international law as expressed in the Corfu Channel Case, (1949) I.C.J. Rep. 4, the International Court of Justice held that a country could not claim a strait as inland water if, in its natural state, it served as a useful route for international passage. We do not consider the point of controlling importance. The United States has not in the past claimed the Santa Barbara Channel as inland water and opposes any such claim now. The channel has not been regarded as a bay either historically or geographically. In these circumstances, as with the drawing of straight base lines, we hold that if the United States does not choose to employ the concept of a 'fictitious bay' in order to extend our international boundaries around the islands framing Santa Barbara Channel, it cannot be forced to do so by California. It is, therefore, unnecessary to reinstitute proceedings before a master to determine the factual question of whether the passageway is internationally useful.

3. Historic Inland Waters.-By the terms of the Convention the 24-mile closing rule does not apply to so-called 'historic' bays. Essentially these are bays over which a coastal nation has traditionally asserted and maintained dominion with the acquiescence of foreign nations. California claims that virtually all the waters here in dispute are historic inland waters as the term is internationally understood. It relies primarily on an interpretation of its State Constitution to the effect that the state boundaries run three miles outside the islands and bays, plus several court decisions which so interpret it as applied to Monterey, Santa Monica, and San Pedro Bays. The United States counters that, as with straight base lines, California can maintain no claim to historic inland waters unless the claim is endorsed by the United States. The Special Master found it unnecessary to decide that question because, on the evidence before him, he concluded that California had not traditionally exercised dominion over any of the claimed waters.

Since the 24-mile rule includes Monterey Bay, we do not consider it here. As to Santa Monica Bay, San Pedro Bay, and the other water areas in dispute, we agree with the Special Master that they are not historic inland waters of the United States.

California contends that two studies of the criteria for determining historic waters have been made since the Special Master filed his report which show that he applied the wrong standards, thus vitiating his conclusions. In particular it is said that the Special Master erroneously thought the concept of historic waters to be an exception to the general rule of inland waters requiring a rigorous standard of proof. We find no substantial indication of this in his report.

On the evidence, California's claim that its constitution set a boundary beyond the bays and islands is arguable, but many of the state statutes drawing county boundaries which supposedly run to the limit of the state boundaries cut the other way by indicating a line only three miles from shore. Furthermore, a legislative declaration of jurisdiction without evidence of further active and continuous assertion of dominion over the waters is not sufficient to establish the claim. There is a federal district court opinion, United States v. Carrillo, 13 F.Supp. 121 (1935), which dismissed federal criminal charges for an offense which took place more than three miles from the shore of San Pedro Bay on the ground that the bay was within California, not federal, jurisdiction; but it is difficult to see this dismissal as an assertion of dominion. In Santa Monica Bay, California did successfully prosecute a criminal offense which took place more than three miles from the shore, People v. Stralla, 14 Cal.2d 617, 96 P.2d 941 (1939). However, the decision stands as the only assertion of criminal jurisdiction of which we have been made aware.

The United States disclaims that any of the disputed areas are historic inland waters. We are reluctant to hold that such a disclaimer would be decisive in all circumstances, for a case might arise in which the historic evidence was clear beyond doubt. But in the case before us, with its questionable evidence of continuous and exclusive assertions of dominion over the disputed waters, we think the disclaimer decisive.

4. Harbors and Roadsteads.-The parties disagree as to whether inland waters should encompass anchorages beyond the outer harborworks of harbors. The Convention on the Territorial Sea and the Contiguous Zone (Art. 8) states without qualification that 'the outermost permanent harbour works which form an integral part of the harbour system shall be regarded as forming part of the coast.' We take that to be the line incorporated in the Submerged Lands Act.

As to open roadsteads used for loading, unloading and anchoring ships, the Convention (Art. 9) provides that such areas should be included in the territorial sea, and, by implication, that they are not to be considered inland waters. We adopt that interpretation.

5. The Line of Ordinary Low Water.-Along the California coast there are two low tides each day, one of which is generally lower than the other. The assertion of the United States, with which the Special Master agreed, is that the line of ordinary low water is obtained by taking the average of all the low tides. California would average only the lower low tides.

We hold that California's position represents the better view of the matter. The Submerged Lands Act defines coastline in terms of the 'line of ordinary low water.' The Convention (Art. 3) uses 'the low-water line along the coast as marked on large-scale charts officially recognized by the coastal State' (i.e., the United States). We interpret the two lines thus indicated to conform, and on the official United States coastal charts of the Pacific Coast prepared by the United States Coast and Geodetic Survey, it is the lower low water line which is marked.

6. Artificial Accretions.-When this case was before the Special Master, the United States contended that it owned all mineral rights to lands outside inland waters which were submerged at the date California entered the Union, even though since enclosed or reclaimed by means of artificial structures. The Special Master ruled that lands so enclosed or filled belonged to California because such artificial changes were clearly recognized by international law to change the coastline. Furthermore, the Special Master recognized that the United States, through its control over navigable waters, had power to protect its interests from encroachment by unwarranted artificial structures, and that the effect of any future changes could thus be the subject of agreement between the parties.

The United States now contends that whereas the Submerged Lands Act recognized and confirmed state title within all artificial as well as natural modifications to the shoreline prior to the passage of the Act, Congress meant to recognize only natural modifications after the date of the Act. The Act, however, makes no specific reference to artificial accretions, and nowhere in the legislative history did anyone focus on the question. The United States points by analogy to the rule of property law that artificial fill belongs to the owner of the submerged land onto which it is deposited. Marine R. & Coal Co. v. United States, 257 U.S. 47, 65, 42 S.Ct. 32, 34, 66 L.Ed. 124. We think the situation different when a State extends its land domain by pushing back the sea; in that case its sovereignty should extend to the new land, as was generally thought to be the case prior to the 1947 California opinion. The considerations which led us to reject the possibility of wholesale changes in the location of the line of inland waters caused by future changes in international Law, supra, pp. 166-167, do not apply with force to the relatively slight and sporadic changes which can be brought about artificially. Arguments based on the inequity to the United States of allowing California to effect changes in the boundary between federal and state submerged lands by making future artificial changes in the coastline are met, as the Special Master pointed out, by the ability of the United States to protect itself through its power over navigable waters.

With the modifications set out in this opinion we approve the recommendations of the Special Master. The parties, or either of them, may, before September 1, 1965, submit a proposed decree to carry this opinion into effect, failing which the Court will prepare and enter an appropriate decree at the next Term of Court.

It is so ordered.

Recommendations of Special Master approved as modified.

THE CHIEF JUSTICE and Mr. Justice CLARK took no part in the consideration or decision of this case.

Mr. Justice BLACK, with whom Mr. Justice DOUGLAS joins, dissenting.