MASSACHUSETTS v. UNITED STATES
No. 76-1500
Supreme Court of the United States
Argued December 6, 1977—Decided March 29, 1978
435 U.S. 444
Terence P. O‘Malley, Assistant Attorney General of Massachusetts, argued the cause for petitioner. With him on the brief were Francis X. Bellotti, Attorney General, and S. Stephen Rosenfeld and Margot Botsford, Assistant Attorneys General.
Allan A. Ryan, Jr., argued the cause for the United States. On the brief were Solicitor General McCree, Assistant Attorney General Ferguson, Stuart A. Smith, and Ann Belanger Durney.*
*W. Bernard Richland and Samuel J. Warms filed a brief for the city of New York as amicus curiae urging reversal.
As part of a comprehensive program to recoup the costs of federal aviation programs from those who use the national airsystem, Congress in 1970 imposed an annual registration tax on all civil aircraft that fly in the navigable airspace of the United States.
I
Since the passage of the Air Commerce Act of 1926, 44 Stat. 568, the Federal Government has expended significant amounts of federal funds to develop and strengthen an integrated national airsystem and to make civil air transportation safe and practical. It has established, developed, and improved a wide array of air navigational facilities and services that benefit all aircraft flying in the Nation‘s navigable
In 1970, after an extended study of the national airsystem, Congress concluded that the level of annual federal outlays on aviation, while significant, had not been sufficient to permit the national airsystem to develop the capacity to cope satisfactorily with the current and projected growth in air transportation. To remedy this situation, Congress enacted two laws, the Airport and Airway Development Act of 1970 (Development Act), 84 Stat. 219, and the Airport and Airway Revenue Act of 1970 (Revenue Act), 84 Stat. 236, which together constitute a comprehensive program substantially to expand and improve the national airport and airway system over the decade beginning July 1, 1970. In the Development Act, Congress provided for vastly increased federal expenditures both for airport planning and development and for the further expansion of federal navigational services. More importantly for present purposes, the Revenue Act adopted several measures to ensure that federal outlays that benefited the civil users of the airways would, to a substantial extent, be financed by taxing measures imposed on those civil users.3
The financing measures in the Revenue Act are intended to promote two purposes. First, they are designed to serve the congressional policy of having those who especially benefit from Government activity help bear the cost. See H. R. Rep.
The tax challenged in this case is one of several adopted in the Revenue Act, the annual aircraft registration tax. Revenue Act, § 206,
As is apparent from both the rate of tax in § 4491 and the legislative history of the Revenue Act, Congress did not contemplate that the annual registration tax would generate significant amounts of revenue, but rather that the bulk of the funds generated by the system would come from other user taxes,8 each of which is related more directly to the level
But while the registration tax was expected to produce only modest revenues and was understood to be only indirectly related to system use, Congress regarded it as an integral and essential part of the network of user charges.9 Moreover, it is
The Commonwealth of Massachusetts owns several aircraft that are subject to the tax imposed by § 4491, including a helicopter which the Commonwealth uses exclusively for patrolling highways and other police functions.10 In 1973 the United States notified the Commonwealth that it had been assessed for a tax of $131.43 on this state police helicopter for the period from July 1, 1970, to June 30, 1971. The Commonwealth refused to pay and the United States thereafter levied on one of the Commonwealth‘s bank accounts and collected this tax, plus interest and penalties.
Pursuant to
II
A review of the development of the constitutional doctrine of state immunity from federal taxation is a necessary preface to decision of this case. For while the Commonwealth concedes that certain types of user fees may constitutionally be applied to its essential activities,11 it urges that the decisions of this Court teach that the validity of any impost levied against a State must be judged by a “bright-line” test: If the measure is labeled a tax and/or imposed or collected pursuant to the Internal Revenue Code, it is unconstitutional as applied to an essential state function even if the revenue measure
A
That the existence of the States implies some restriction on the national taxing power was first decided in Collector v. Day, 11 Wall. 113 (1871). There this Court held that the immunity that federal instrumentalities and employees then enjoyed from state taxation, see Dobbins v. Commissioners, 16 Pet. 435 (1842); McCulloch v. Maryland, 4 Wheat. 316 (1819), was to some extent reciprocal and that the salaries paid state judges were immune from a nondiscriminatory federal tax. This immunity of State and Federal Governments
The immunity of the Federal Government from state taxation is bottomed on the Supremacy Clause, but the States’ immunity from federal taxes was judicially implied from the States’ role in the constitutional scheme. Collector v. Day, supra, emphasized that the States had been in existence as independent sovereigns when the Constitution was adopted, and that the Constitution presupposes and guarantees the continued existence of the States as governmental bodies performing traditional sovereign functions. 11 Wall., at 125-126. To implement this aspect of the constitutional plan, Collector v. Day concluded that it was imperative absolutely to prohibit any federal taxation that directly affected a traditional state function, quoting Mr. Chief Justice Marshall‘s aphorisms that ” ‘the power of taxing... may be exercised so far as to destroy,’ ” id., at 123, quoting McCulloch v. Maryland, supra, at 427, and ” ’ “a right [to tax], in its nature, acknowledges no limits.” ’ ” 11 Wall., at 123, quoting Weston v. Charleston, 2 Pet. 449, 466 (1829). The Court has more recently remarked that these maxims refer primarily to two attributes of the taxing power. First, in imposing a tax to support the services a government provides to the public at large, a legislature need not consider the value of particular benefits to a taxpayer, but may assess the tax solely on the basis of taxpayers’ ability to pay. Second (of perhaps greater concern in the present context), a tax is a powerful regulatory device; a legislature can discourage or eliminate a particular activity that is within its regulatory jurisdiction simply by im-
As the contours of the principle evolved in later decisions, “cogent reasons” were recognized for narrowly limiting the immunity of the States from federal imposts. See Helvering v. Gerhardt, 304 U. S. 405, 416 (1938). The first is that any immunity for the protection of state sovereignty is at the expense of the sovereign power of the National Government to tax. Therefore, when the scope of the States’ constitutional immunity is enlarged beyond that necessary to protect the continued ability of the States to deliver traditional governmental services, the burden of the immunity is thrown upon the National Government without any corresponding promotion of the constitutionally protected values. See, id., at 416-417; Helvering v. Mountain Producers Corp., 303 U. S. 376, 384-385 (1938); Willcuts v. Bunn, 282 U. S. 216, 225 (1931). The second, also recognized by Mr. Chief Justice Marshall in McCulloch v. Maryland, supra, at 435-436, is that the political process is uniquely adapted to accommodating the competing demands “for national revenue, on the one hand, and for reasonable scope for the independence of state action, on the other,” Helvering v. Gerhardt, supra, at 416: The Congress, composed as it is of members chosen by state constituencies, constitutes an inherent check against the possibility of abusive taxing of the States by the National Government.13
In tacit, and at times explicit, recognition of these considerations, decisions of the Court either have declined to enlarge the scope of state immunity or have in fact restricted its reach. Typical of this trend are decisions holding that the National Government may tax revenue-generating activities of the States that are of the same nature as those traditionally engaged in by private persons. See, e. g., New York v. United States, 326 U. S. 572 (1946) (tax on water bottled and sold by State upheld); Allen v. Regents, 304 U. S. 439 (1938) (tax on admissions to state athletic events approved notwithstanding use of proceeds for essential state functions); Helvering v. Powers, 293 U. S. 214 (1934) (tax on operations of railroad by State); Ohio v. Helvering, 292 U. S. 360 (1934) (tax on state liquor operation); South Carolina v. United States, 199 U. S. 437 (1905) (tax on state-run liquor business). It is true that some of the opinions speak of the state activity taxed as “proprietary” and thus not an immune essential governmental activity, but the opinions of the Members of the Court in New York v. United States, supra, the most recent decision, rejected the governmental-proprietary distinction as untenable.14 Rather the majority15 reasoned that a nondiscriminatory tax
may be applied to a state business activity where, as was the case there, the recognition of immunity would “accomplish a withdrawal from the taxing power of the nation a subject of taxation of a nature which has been traditionally within that power from the beginning. Its exercise... by a nondiscriminatory tax, does not curtail the business of the state government more than it does the like business of the citizen.” 326 U. S., at 588-589 (Stone, C. J., concurring).
Illustrative of decisions actually restricting the scope of the immunity is the line of cases that culminated in the overruling of Collector v. Day in Graves v. New York ex rel. O‘Keefe, 306 U. S. 466 (1939). See, e. g., Helvering v. Gerhardt, supra; Helvering v. Mountain Producers Corp., supra; Metcalf & Eddy v. Mitchell, 269 U. S. 514 (1926). Collector v. Day, of course, involved a nondiscriminatory tax that was imposed not directly on the State but rather on the salary earned by a judicial officer. Neither Collector v. Day itself nor its progeny or precursors made clear how such a taxing measure could be employed to preclude the States from performing essential functions. In any case, in the line of decisions that culminated in Graves v. New York ex rel. O‘Keefe, supra, the Court demonstrated that an immunity for the salaries paid key state officials is not justifiable. Although key state officials are agents of the State, they are also citizens of the United States, so their income is a natural subject for income taxation. See Helvering v. Gerhardt, supra, at 420 and 422.
More significantly, because the taxes imposed were nondiscriminatory and thus also applicable to income earned by persons in private employment, the risk was virtually nonexistent that such revenue provisions could significantly impede a State‘s ability to hire able persons to perform its essential
These two lines of decisions illustrate the “practical construction” that the Court now gives the limitation the existence of the States constitutionally imposes on the national taxing power; “that limitation cannot be so varied or extended as seriously to impair either the taxing power of the government imposing the tax... or the appropriate exercise of the functions of the government affected by it.” New York v. United States, 326 U. S., at 589-590 (Stone, C. J., concurring) quoting Metcalf & Eddy v. Mitchell, supra, at 523-524. Where the subject of tax is a natural and traditional source of federal revenue and where it is inconceivable that such a revenue measure could ever operate to preclude traditional
B
A nondiscriminatory taxing measure that operates to defray the cost of a federal program by recovering a fair approximation of each beneficiary‘s share of the cost is surely no more offensive to the constitutional scheme than is either a tax on the income earned by state employees or a tax on a State‘s sale of bottled water.18 The National Government‘s interest in being compensated for its expenditures is only too apparent. More significantly perhaps, such revenue measures by their very nature cannot possess the attributes that led Mr. Chief Justice Marshall to proclaim that the power to tax is the power
Our decisions in analogous contexts support this conclusion. We have repeatedly held that the Federal Government may impose appropriate conditions on the use of federal property or privileges and may require that state instrumentalities comply with conditions that are reasonably related to the federal interest in particular national projects or programs. See, e. g., Ivanhoe Irrigation Dist. v. McCracken, 357 U. S. 275, 294-296 (1958); Oklahoma v. Civil Service Comm‘n, 330 U. S. 127, 142-144 (1947); United States v. San Francisco, 310 U. S. 16 (1940); cf. National League of Cities v. Usery, 426 U. S. 833, 853 (1976); Fry v. United States, 421 U. S. 542 (1975). A requirement that States, like all other users, pay a portion of the costs of the benefits they enjoy from federal programs is surely permissible since it is closely related to the
A clearly analogous line of decisions is that interpreting provisions in the Constitution that also place limitations on the taxing power of government. See, e. g.,
Our decisions implementing these constitutional provisions have consistently recognized that the interests protected by these Clauses are not offended by revenue measures that operate only to compensate a government for benefits supplied. See, e. g., Clyde Mallory Lines v. Alabama, supra (flat fee charged each vessel entering port upheld because charge operated to defray cost of harbor policing); Evansville-Vanderburgh Airport Authority v. Delta Airlines, Inc., 405 U. S. 707 (1972) ($1 head tax on enplaning commercial air passengers upheld under the Commerce Clause because designed to recoup cost of airport facilities). A governmental body has an obvious interest in making those who specifically benefit from its services pay the cost and, provided that the charge is structured to compensate the government for the benefit conferred, there can be no danger of the kind of interference
C
Having established that taxes that operate as user fees may constitutionally be applied to the States, we turn to consider the Commonwealth‘s argument that § 4491 should not be treated as a user fee because the amount of the tax is a flat annual fee and hence is not directly related to the degree of use of the airways.19 This argument has been confronted and rejected in analogous contexts. Capitol Greyhound Lines v. Brice, 339 U. S. 542 (1950), is illustrative. There the Court rejected an attack under the Commerce Clause on an annual Maryland highway tax of “2% upon the fair market value of motor vehicles used in interstate commerce.” The carrier argued that the correlation between the tax and use was not sufficiently precise to sustain the tax as a valid user charge. Noting that the tax “should be judged by its result, not its formula, and must stand unless proven to be unreasonable in amount for the privilege granted,” id., at 545, the Court rejected the carrier‘s argument:
enforcement, which fall alike on taxpayers and government. We have recognized that such burdens may be sufficient to justify states in ignoring even such a key factor as mileage, although the result may be a tax which on its face appears to bear with unequal weight upon different carriers. . . . Upon this type of reasoning rests our general rule that taxes like that of Maryland here are valid unless the amount is shown to be in excess of fair compensation for the privilege of using state roads.” Id., at 546-547. (Citations and footnotes omitted.)“Complete fairness would require that a state tax formula vary with every factor affecting appropriate compensation for road use. These factors, like those relevant in considering the constitutionality of other state taxes, are so countless that we must be content with ‘rough approximation rather than precision.‘... Each additional factor adds to administrative burdens of
See also Aero Mayflower Transit Co. v. Board of Railroad Comm‘rs, 332 U. S. 495 (1947) (taxes of $10 and $15 per vehicle sustained against Commerce Clause challenges); Clyde Mallory Lines v. Alabama ex rel. State Docks Comm‘n, supra (flat fee designed to defray cost of policing port upheld against claim it was constitutionally prohibited tax on privilege of entering harbor). This Court recently relied upon this reasoning to uphold a tax on commercial aviation activity. In Evansville-Vanderburgh Airport Authority v. Delta Airlines, Inc., supra, we sustained against claims based on the Commerce Clause and on the right to travel a $1 head tax on commercial airline passengers. We held that such taxes are valid so long as they (1) do not discriminate against interstate commerce, (2) are based upon some fair approximation of use, and (3) are not shown to be excessive in relation to the cost to the government of the benefits conferred. 405 U. S., at 716-720.
The Commonwealth, of course, recognizes that flat fees, and even flat annual fees, have been held constitutionally permissible in these contexts. It urges, however, that such “rough approximations of cost,” while appropriate compensatory measures in other settings, should not be permissible here. It maintains that the values protected by the doctrine of state tax immunity require that any user tax be closely calibrated
We note first that it is doubtful that the National Government could recover the costs of its aviation activities from those direct beneficiaries without making at least some use of annual flat fees. In arguing that the Revenue Act provisions are not sufficiently user related, the Commonwealth places extensive reliance upon the DOT Study, prepared at the direction of Congress,20 of the best way to recoup the costs of the federal aviation activities from its beneficiaries. While the report recognized that it would be generally possible, albeit costly in the case of general aviation, to tie the charges to specific measurable benefits received, see DOT Study 61, it indicated that certain costs imposed by general aviation could only be recovered through flat fees. Id., at 61 n. 2.
But even if it were feasible to recover all costs through charges for measurable amounts of use of Government facilities, we fail to see how such a requirement would appreciably advance the policies embodied in the doctrine of state tax immunity. Since a State has no constitutional complaint when it is required to pay the cost of benefits received, the Commonwealth‘s only legitimate fear is that the flat-fee requirement may result in the collection from it of more than its actual “fair share.” We observe first that where the
Whatever the present scope of the principle of state tax immunity, a State can have no constitutional objection to a revenue measure that satisfies the three-prong test of Evansville-Vanderburgh Airport Authority v. Delta Airlines, Inc.—substituting “state function” for “interstate commerce” in that test. So long as the charges do not discriminate against state functions, are based on a fair approximation of use of the system, and are structured to produce revenues that will not exceed the total cost to the Federal Government of the benefits
III
Applying these principles to this case demonstrates that the Commonwealth‘s claim of constitutional immunity is particularly insubstantial. First, there is no question but that the tax imposed by
Second, the tax satisfies the requirement that it be a fair approximation of the cost of the benefits civil aircraft receive from the federal activities. As we have indicated, the legislative background and terms of the Revenue Act indicate that
It follows that a State may not complain of the application of
Finally, the tax is not excessive in relation to the cost of the Government benefits supplied. When Congress enacted the Revenue Act, it contemplated that the user fees imposed on civil aircraft would not be sufficient to cover the federal expenditures on civil aviation in any one year, see n. 4, supra, and the actual experience during the first years of operation was that the revenues fell far short of covering the annual civil aviation outlays.24 Since the Commonwealth pays far
Affirmed.
MR. JUSTICE BLACKMUN took no part in the consideration or decision of this case.
MR. JUSTICE STEWART and MR. JUSTICE POWELL, concurring in part and concurring in the judgment.
The petitioner has conceded that a nondiscriminatory user fee may constitutionally be imposed upon a State and, for substantially the reasons stated in Part II-B of the plurality opinion, we agree. Moreover, we agree with the Court that
On this basis we join Parts I, II-C, and III of the Court‘s opinion and concur in its judgment.
MR. JUSTICE REHNQUIST, with whom THE CHIEF JUSTICE joins, dissenting.
Petitioner, the Commonwealth of Massachusetts, brought suit against the United States to recover a charge of $131.43 plus penalties and interest imposed upon it by reason of its use of a helicopter in connection with its state police force. The United States moved to dismiss petitioner‘s complaint, and its motion was granted by the District Court for the District of Massachusetts. The Court of Appeals for the First Circuit affirmed that judgment, but expressly chose to do so on a narrower ground than that relied upon by the District Court. 548 F. 2d 33, 34 (1977). The Court of Appeals found it unnecessary to examine the law of intergovernmental tax immunity, because it concluded that the charge imposed here “is, in reality, a user charge.” Id., at 35. While the Court of Appeals recognized that the labeling of an assessment as a user charge is not of itself conclusive, cf. Packet Co. v. Keokuk, 95 U. S. 80, 86 (1877), it quoted the following language in explaining its understanding of the distinction between a tax and a user charge:
“It is a tax or duty that is prohibited: something imposed by virtue of sovereignty, not claimed in right of proprietorship. Wharfage is of the latter character. Providing a wharf to which vessels may make fast, or at which they may conveniently load or unload, is rendering them a service. . . . [A]nd, when compensation is demanded for the use of the wharf, the demand is an assertion, not of sovereignty, but of a right of property.” 548 F. 2d, at 36, quoting Packet Co. v. Keokuk, supra, at 85.
“[T]his case presents no occasion to consider the present status of the doctrine of implied constitutional immunity of the states from federal taxation. Here, the annual excise tax on the use of civil aircraft is not a tax subject to any constitutional restrictions but is simply a required payment by the user for airport and airway facilities funded or provided by the federal government. Petitioner can no more claim the right to free use of these facilities than it could, for example, use the postal service without purchasing stamps.” Brief for United States 6-7.
It is therefore somewhat surprising to find Part II-A of today‘s opinion (which reflects the views of only four Justices) discussing at length the scope of intergovernmental tax immunity. Petitioner insists that it may be able to prove at a trial of the action that the charge is not in fact a user fee; the United States insists that it is a user fee, apparently as a matter of law. This is the issue before the Court, and the only issue before it.
I agree that the United States would have a valid defense to this action if it had established, or could establish, that the charge imposed was reasonably related to services rendered to the petitioner by agencies of the Federal Government. I further conclude that the United States would have a valid defense to this action if it could establish that the charge was based on use by the petitioner of some property which the United States owned or in which it had some other type of proprietary interest. Cf. Packet Co. v. Keokuk, supra, at 84-85. I am at a loss to know why the Court feels obligated to draw on cases decided under the Commerce Clause,
Regardless of the phrasing of the test, I cannot accept the Court‘s conclusion that the Commonwealth need not be given the opportunity to prove that the test has not been satisfied. The Court, relying heavily on our opinion in Evansville-Vanderburgh Airport Authority v. Delta Airlines, Inc., 405 U. S. 707 (1972), holds that the fee need not be precisely calibrated to the value of the service furnished so long as it is not shown to be excessive in relation to the cost to the United States of the benefits conferred. Ante, at 466-467. But in the cases considered in that opinion, the Court explicitly noted that the challengers had been given the chance to prove the fee excessive and had failed to do so. 405 U. S., at 720. In addition, there was no doubt that the municipal corporations which sought to impose the head tax in fact owned the airport facilities, nor that passengers who were paying the head tax were taking advantage of the services provided by those facilities.
Neither of those conclusions can be reached as a matter of law on the record before us. The United States does not “own” the airspace above its territorial boundaries, although it undoubtedly has considerable authority to regulate the use of that airspace. Nor does the United States, so far as this record shows, “own” any of the facilities which are used by
The Court‘s reliance upon Clyde Mallory Lines v. Alabama ex rel. State Docks Comm‘n, 296 U. S. 261 (1935), which arose under the Duty of Tonnage Clause of the Constitution,
It may be that upon further development of the record in this case, by trial or by procedures leading to summary judgment, a situation similar to that in Clyde Mallory Lines, supra, could be shown by the United States to exist. But that does not justify the order of the District Court dismissing petitioner‘s complaint without such development. I would therefore reverse the judgment of the Court of Appeals and remand for further proceedings.
Notes
“(a) Imposition of Tax.
“A tax is hereby imposed on the use of any taxable civil aircraft during any year at the rate of—
“(1) $25, plus
“(2) (A) in the case of an aircraft (other than a turbine-engine-powered aircraft) 2 cents a pound for each pound of the maximum certificated takeoff weight in excess of 2,500 pounds, or (B) in the case of any turbine engine powered aircraft, 3 1/2 cents a pound for each pound of the maximum certificated takeoff weight.”
Title
The legislative history supports this view. In connection with the discussion of one of the other taxes enacted by the Revenue Act, the Committee Reports explained that it was terminating the statutory exemption that previously had operated to benefit the States “since this tax is now generally viewed as a user charge[, so] there would appear to be no reason why these governmental [bodies] should not pay for their share of the use of the airway facilities.” H. R. Rep. 46; see S. Rep. 17-18. Obviously, this reasoning is equally applicable to all measures the Congress conceived of as user fees. Moreover, the Committee Reports’ discussion of § 4491 explicitly stated that the tax was “based upon the premise that all aircraft should pay a basic fee as an entry fee to use the system,” H. R. Rep. 40 (emphasis supplied); see S. Rep. 20-21, and further that the tax applied to civil aircraft owned by the United States. See H. R. Rep. 49; S. Rep. 20. Since the statute by its terms includes state-owned aircraft and since the legislative history broadly indicates that all government-owned civil aircraft are covered, petitioner has conceded that the statute applies. See Brief for Petitioner 8-9, n. 1; Tr. of Oral Arg. 6-7.
“TABLE 3.-REVENUES FROM AVIATION USER TAXES, SELECTED FISCAL YEARS, 1965-79
[In millions of dollars]
| Actual | Estimated | ||||||
|---|---|---|---|---|---|---|---|
| User tax | 1965 | 1967 | 1969 | 1970 | 1971 | 1974 | 1979 |
| Passenger ticket tax | $147.5 | $194.5 | $259.5 | $373.7 | $507.2 | $679.2 | $1,083.2 |
| Cargo tax, 5 percent | 18.7 | 42.7 | 63.1 | 134.2 | |||
| Fuel tax | 16.7 | 14.4 | 11.0 | 26.5 | 45.8 | 54.3 | 76.7 |
| International departure tax, $3 | 12.4 | 27.1 | 36.5 | 58.7 | |||
| Taxes on tires and tubes used on aircraft | 2.0 | 2.4 | 2.6 | 2.8 | 3.0 | 3.5 | 5.0 |
| Aircraft registration taxes | 12.4 | 26.6 | 32.3 | 42.1 | |||
| Total | 166.2 | 211.3 | 273.1 | 446.5 | 652.4 | 868.9 | 1,399.9 |
“Source: U. S. Treasury Department and Federal Aviation Administration, Office of Aviation Economics.” H. R. Rep. 39 (footnotes omitted); see S. Rep. 10.
Indeed, this table overstates the estimated revenues from the registration tax since it assumes that the rate of tax on piston aircraft will be $25 plus 2 cents per pound, rather than the $25 plus 2 cents for each pound in excess of 2,500 pounds that is provided for in § 4491. Ibid. As the table indicates, aircraft are subject to an aircraft tire and tube tax, which is imposed by
“The [Committee] determine[s] that, to some extent, the costs of the airport and airway system are incurred because many aircraft may use the system at some time, even though most of the time most of these craft are not in the air. In addition, it appears that heavier and faster aircraft are generally responsible for much of the increased need of sophisticated control facilities and approach and landing facilities.” H. R. Rep. 48; see S. Rep. 8-9.
Thus, the registration tax was included in the bill in an attempt to recover part of the marginal cost imposed on the national airsystem by the addition of a possible user and to ensure that the fee system reflects in some manner the additional costs that heavier and faster (i. e., turbine-powered) aircraft impose upon it.
