Task: sc_casedisposition

What follows is an opinion from the Supreme Court of the United States. Your task is to identify the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed. The information relevant to this variable may be found near the end of the summary that begins on the title page of each case, or preferably at the very end of the opinion of the Court. For cases in which the Court granted a motion to dismiss, consider "petition denied or appeal dismissed". There is "no disposition" if the Court denied a motion to dismiss.

Justice Blackmun
delivered the opinion of the Court.
In this litigation, we granted certiorari before judgment in the United States Court of Appeals for the Eighth Circuit in order to consider the constitutionality of the Sentencing Guidelines promulgated by the United States Sentencing Commission. The Commission is a body created under the Sentencing Reform Act of 1984 (Act), as amended, 18 U. S. C. § 3551 et seq. (1982 ed., Supp. IV), and 28 U. S. C. §§ 991-998 (1982 ed., Supp. IV). The United States District Court for the Western District of Missouri ruled that the Guidelines were constitutional. United States v. Johnson, 682 F. Supp. 1033 (1988).
I
A
Background
For almost a century, the Federal Government employed in criminal cases a system of indeterminate sentencing. Statutes specified the penalties for crimes but nearly always gave the sentencing judge wide discretion to decide whether the offender should be incarcerated and for how long, whether restraint, such as probation, should be imposed instead of imprisonment or fine. This indeterminate-sentencing system was supplemented by the utilization of parole, by which an offender was returned to society under the “guidance and control” of a parole officer. See Zerbst v. Kidwell, 304 U. S. 359, 363 (1938).
Both indeterminate sentencing and parole were based on concepts of the offender’s possible, indeed probable, rehabilitation, a view that it was realistic to attempt to rehabilitate the inmate and thereby to minimize the risk that he would resume criminal activity upon his return to society. It obviously required the judge and the parole officer to make their respective sentencing and release decisions upon their own assessments of the offender’s amenability to rehabilitation. As a result, the court and the officer were in positions to exercise, and usually did exercise, very broad discretion. See Kadish, The Advocate and the Expert —Counsel in the PenoCorrectional Process, 45 Minn. L. Rev. 803, 812-813 (1961).. This led almost inevitably to the conclusion on the part of a reviewing court that the sentencing judge “sees more and senses more” than the appellate court; thus, the judge enjoyed the “superiority of his nether position,” for that court’s determination as to what sentence was appropriate met with virtually unconditional deference on appeal. See Rosenberg, Judicial Discretion of the Trial Court, Viewed From Above, 22 Syracuse L. Rev. 635, 663 (1971). See Dorszynski v. United States, 418 U. S. 424, 431 (1974). The decision whether to parole was also “predictive and discretionary.” Morrissey v. Brewer, 408 U. S. 471, 480 (1972). The correction official possessed almost absolute discretion over the parole decision. See, e. g., Brest v. Ciccone, 371 F. 2d 981, 982-983 (CA8 1967); Rifai v. United States Parole Comm’n, 586 F. 2d 695 (CA9 1978).
Historically, federal sentencing — the function of determining the scope and extent of punishment — never has been thought to be assigned by the Constitution to the exclusive jurisdiction of any one of the three Branches of Government. Congress, of course, has the power to fix the sentence for a federal crime, United States v. Wiltberger, 5 Wheat. 76 (1820), and the scope of judicial discretion with respect to a sentence is subject to congressional control. Ex parte United States, 242 U. S. 27 (1916). Congress early abandoned fixed-sentence rigidity, however, and put in place a system of ranges within which the sentencer could choose the precise punishment. See United States v. Grayson, 438 U. S. 41, 45-46 (1978). Congress delegated almost unfettered discretion to the sentencing judge to determine what the sentence should be within the customarily wide range so selected. This broad discretion was further enhanced by the power later granted the judge to suspend the sentence and by the resulting growth of an elaborate probation system. Also, with the advent of parole, Congress moved toward a “three-way sharing” of sentencing responsibility by granting corrections personnel in the Executive Branch the discretion to release a prisoner before the expiration of the sentence imposed by the judge. Thus, under the indeterminate-sentence system, Congress defined the maximum, the judge imposed a sentence within the statutory range (which he usually could replace with probation), and the Executive Branch’s parole official eventually determined the actual duration of imprisonment. See Williams v. New York, 337 U. S. 241, 248 (1949). See also Geraghty v. United States Parole Comm’n, 719 F. 2d 1199, 1211 (CA3 1983), cert. denied, 465 U. S. 1103 (1984); United States v. Addonizio, 442 U. S. 178, 190 (1979); United States v. Brown, 381 U. S. 437, 443 (1965) (“[I]f a given policy can be implemented only by a combination of legislative enactment, judicial application, and executive implementation, no man or group of men will be able to impose its unchecked will”).
Serious disparities in sentences, however, were common. Rehabilitation as a sound penological theory came to be questioned and, in any event, was regarded by some as an unattainable goal for most cases. See N. Morris, The Future of Imprisonment 24-43 (1974); F. Allen, The Decline of the Rehabilitative Ideal (1981). In 1958, Congress authorized the creation of judicial sentencing institutes and joint councils, see 28 U. S. C. § 334, to formulate standards and criteria for sentencing. In 1973, the United States Parole Board adopted guidelines that established a “customary range” of confinement. See United States Parole Comm’n v. Geraghty, 445 U. S. 388, 391 (1980). Congress in 1976 endorsed this initiative through the Parole Commission and Reorganization Act, 18 U. S. C. §§4201-4218, an attempt to envision for the Parole Commission a role, at least in part, “to moderate the disparities in the sentencing practices of individual judges.” United States v. Addonizio, 442 U. S., at 189. That Act, however, did not disturb the division of sentencing responsibility among the three Branches. The judge continued to exercise discretion and to set the sentence within the statutory range fixed by Congress, while the prisoner’s actual release date generally was set by the Parole Commission.
This proved to be no more than a way station. Fundamental and widespread dissatisfaction with the uncertainties and the disparities continued to be expressed. Congress had wrestled with the problem for more than a decade when, in 1984, it enacted the sweeping reforms that are at issue here.
Helpful in our consideration and analysis of the statute is the Senate Report on the 1984 legislation, S. Rep. No. 98-225 (1983) (Report). The Report referred to the “outmoded rehabilitation model” for federal criminal sentencing, and recognized that the efforts of the criminal justice system to achieve rehabilitation of offenders had failed. Id., at 38. It observed that the indeterminate-sentencing system had two “unjustified]” and “shameful” consequences. Id., at 38, 65. The first was the great variation among sentences imposed by different judges upon similarly situated offenders. The second was the uncertainty as to the time the offender would spend in prison. Each was a serious impediment to an evenhanded and effective operation of the criminal justice system. The Report went on to note that parole was an inadequate device for overcoming these undesirable consequences. This was due to the division of authority between the sentencing judge and the parole officer who often worked at cross purposes; to the fact that the Parole Commission’s own guidelines did not take into account factors Congress regarded as important in sentencing, such as the sophistication of the offender and the role the offender played in an offense committed with others, id., at 48; and to the fact that the Parole Commission had only limited power to adjust a sentence imposed by the court. Id., at 47.
Before settling on a mandatory-guideline system, Congress considered other competing proposals for sentencing reform. It rejected strict determinate sentencing because it concluded that a guideline system would be successful in reducing sentence disparities while retaining the flexibility needed to adjust for unanticipated factors arising in a particular case. Id., at 78-79, 62. The Judiciary Committee rejected a proposal that would have made the sentencing guidelines only advisory. Id., at 79.
B
The Act
The Act, as adopted, revises the old sentencing process in several ways:
1. It rejects imprisonment as a means of promoting rehabilitation, 28 U. S. C. §994(k), and it states that punishment should serve retributive, educational, deterrent, and incapacitative goals, 18 U. S. C. § 3553(a)(2).
2. It consolidates the power that had been exercised by the sentencing judge and the Parole Commission to decide what punishment an offender should suffer. This is done by creating the United States Sentencing Commission, directing that Commission to devise guidelines to be used for sentencing, and prospectively abolishing the Parole Commission. 28 U. S. C. §§991, 994, and 995(a)(1).
3. It makes all sentences basically determinate. A prisoner is to be released at the completion of his sentence reduced only by any credit earned by good behavior while in custody. 18 U. S. C. §§ 3624(a) and (b).
4. It makes the Sentencing Commission’s guidelines binding on the courts, although it preserves for the judge the discretion to depart from the guideline applicable to a particular case if the judge finds an aggravating or mitigating factor present that the Commission did not adequately consider when formulating guidelines. §§ 3553(a) and (b). The Act also requires the court to state its reasons for the sentence imposed and to give “the specific reason” for imposing a sentence different from that described in the guideline. § 3553(c).
5. It authorizes limited appellate review of the sentence. It permits a defendant to appeal a sentence that is above the defined range, and it permits the Government to appeal a sentence that is below that range. It also permits either side to appeal an incorrect application of the guideline. §§ 3742(a) and (b).
Thus, guidelines were meant to establish a range of determinate sentences for categories of offenses and defendants according to various specified factors, “among others.” 28 U. S. C. §§ 994(b), (c), and (d). The maximum of the range ordinarily may not exceed the minimum by more than the greater of 25% or six months, and each sentence is to be within the limit provided by existing law. §§ 994(a) and (b)(2).
C
The Sentencing Commission
The Commission is established “as an independent commission in the judicial branch of the United States.” §991(a). It has seven voting members (one of whom is the Chairman) appointed by the President “by and with the advice and consent of the Senate.” “At least three of the members shall be Federal judges selected after considering a list of six judges recommended to the President by the Judicial Conference of the United States.” Ibid. No more than four members of the Commission shall be members of the same political party. The Attorney General, or his designee, is an ex officio nonvoting member. The Chairman and other members of the Commission are subject to removal by the President “only for neglect of duty or malfeasance in office or for other good cause shown.” Ibid. Except for initial staggering of terms, a voting member serves for six years and may not serve more than two full terms. §§ 992(a) and (b).
D
The Responsibilities of the Commission
In addition to the duty the Commission has to promulgate determinative-sentence guidelines, it is under an obligation periodically to “review and revise” the guidelines. § 994(o). It is to “consult with authorities on, and individual and institutional representatives of, various aspects of the Federal criminal justice system.” Ibid. It must report to Congress “any amendments of the guidelines.” §994(p). It is to make recommendations to Congress whether the grades or maximum penalties should be modified. § 994(r). It must submit to Congress at least annually an analysis of the operation of the guidelines. § 994(w). It is to issue “general policy statements” regarding their application. § 994(a)(2). And it has the power to “establish general policies... as are necessary to carry out the purposes” of the legislation, § 995(a)(1); to “monitor the performance of probation officers” with respect to the guidelines, § 995(a)(9); to “devise and conduct periodic training programs of instruction in sentencing techniques for judicial and probation personnel” and others, § 995(a)(18); and to “perform such other functions as are required to permit Federal courts to meet their responsibilities” as to sentencing, § 995(a)(22).
We note, in passing, that the monitoring function is not without its burden. Every year, with respect to each of more than 40,000 sentences, the federal courts must forward, and the Commission must review, the presentence report, the guideline worksheets, the tribunal’s sentencing statement, and any written plea agreement.
II
This Litigation
On December 10, 1987, John M. Mistretta (petitioner) and another were indicted in the United States District Court for the Western District of Missouri on three counts centering in a cocaine sale. See App. to Pet. for Cert, in No. 87-1904, p. 16a. Mistretta moved to have the promulgated Guidelines ruled unconstitutional on the grounds that the Sentencing Commission was constituted in violation of the established doctrine of separation of powers, and that Congress delegated excessive authority to the Commission to structure the Guidelines. As has been noted, the District Court was not persuaded by these contentions.
The District Court rejected petitioner’s delegation argument on the ground that, despite the language of the statute, the Sentencing Commission “should be judicially characterized as having Executive Branch status,” 682 F. Supp., at 1035, and that the Guidelines are similar to substantive rules promulgated by other agencies. Id., at 1034-1035. The court also rejected petitioner’s claim that the Act is unconstitutional because it requires Article III federal judges to serve on the Commission. Id.; at 1035. The court stated, however, that its opinion “does not imply that I have no serious doubts about some parts of the Sentencing Guidelines and the legality of their anticipated operation.” Ibid.
Petitioner had pleaded guilty to the first count of his indictment (conspiracy and agreement to distribute cocaine, in violation of 21 U. S. C. §§846 and 841(b)(1)(B)). The Government thereupon moved to dismiss the remaining counts. That motion was granted. App. to Pet. for Cert, in No. 87-1904, p. 33a. Petitioner was sentenced under the Guidelines to 18 months’ imprisonment, to be followed by a 3-year term of supervised release. Id., at 30a, 35a, 37a. The court also imposed a $1,000 fine and a $50 special assessment. Id., at 31a, 40a.
Petitioner filed a notice of appeal to the Eighth Circuit, but both petitioner and the United States, pursuant to this Court’s Rule 18, petitioned for certiorari before judgment. Because of the “imperative public importance” of the issue, as prescribed by the Rule, and because of the disarray among the Federal District Courts, we granted those petitions. 486 U. S. 1054 (1988).
Ill
Delegation of Power
Petitioner argues that in delegating the power to promulgate sentencing guidelines for every federal criminal offense to an independent Sentencing Commission, Congress has granted the Commission excessive legislative discretion in violation of the constitutionally based nondelegation doctrine. We do not agree.
The nondelegation doctrine is rooted in the principle of separation of powers that underlies our tripartite system of Government. The Constitution provides that “[a]ll legislative Powers herein granted shall be vested in a Congress of the United States,” U. S. Const., Art. I, §1, and we long have insisted that “the integrity and maintenance of the system of government ordained by the Constitution” mandate that Congress generally cannot delegate its legislative power to another Branch. Field v. Clark, 143 U. S. 649, 692 (1892). We also have recognized, however, that the separation-of-powers principle, and the nondelegation doctrine in particular, do not prevent Congress from obtaining the assistance of its coordinate Branches. In a passage now enshrined in our jurisprudence, Chief Justice Taft, writing for the Court, explained our approach to such cooperative ventures: “In determining what [Congress] may do in seeking assistance from another branch, the extent and character of that assistance must be fixed according to common sense and the inherent necessities of the government co-ordination.” J. W. Hampton, Jr., & Co. v. United States, 276 U. S. 394, 406 (1928). So long as Congress “shall lay down by legislative act an intelligible principle to which the person or body authorized to [exercise the delegated authority] is directed to conform, such legislative action is not a forbidden delegation of legislative power.” Id., at 409.
Applying this “intelligible principle” test to congressional delegations, our jurisprudence has been driven by a practical understanding that in our increasingly complex society, replete with ever changing and more technical problems, Congress simply cannot do its job absent an ability to delegate power under broad general directives. See Opp Cotton Mills, Inc. v. Administrator, Wage and Hour Div. of Dept. of Labor, 312 U. S. 126, 145 (1941) (“In an increasingly complex society Congress obviously could not perform its functions if it were obliged to find all the facts subsidiary to the basic conclusions which support the defined legislative policy”); see also United States v. Robel, 389 U. S. 258, 274 (1967) (opinion concurring in result). “The Constitution has never been regarded as denying to the Congress the necessary resources of flexibility and practicality, which will enable it to perform its function.” Panama Refining Co. v. Ryan, 293 U. S. 388, 421 (1935). Accordingly, this Court has deemed it “constitutionally sufficient if Congress clearly delineates the general policy, the public agency which is to apply it, and the boundaries of this delegated authority.” American Power & Light Co. v. SEC, 329 U. S. 90, 105 (1946).
Until 1935, this Court never struck down a challenged statute on delegation grounds. See Synar v. United States, 626 F. Supp. 1374, 1383 (DC) (three-judge court), aff’d sub nom. Bowsher v. Synar, 478 U. S. 714 (1986). After invalidating in 1935 two statutes as excessive delegations, see A. L. A. Schechter Poultry Corp. v. United States, 295 U. S. 495, and Panama Refining Co. v. Ryan, supra, we have upheld, again without deviation, Congress’ ability to delegate power under broad standards. See, e. g., Lichter v. United States, 334 U. S. 742, 785-786 (1948) (upholding delegation of authority to determine excessive profits); American Power & Light Co. v. SEC, 329 U. S., at 105 (upholding delegation of authority to Securities and Exchange Commission to prevent unfair or inequitable distribution of voting power among security holders); Yakus v. United States, 321 U. S. 414, 426 (1944) (upholding delegation to Price Administrator to fix commodity prices that would be fair and equitable, and would effectuate purposes of Emergency Price Control Act of 1942); FPC v. Hope Natural Gas Co., 320 U. S. 591, 600 (1944) (upholding delegation to Federal Power Commission to determine just and reasonable rates); National Broadcasting Co. v. United States, 319 U. S. 190, 225-226 (1943) (upholding delegation to Federal Communications Commission to regulate broadcast licensing “as public interest, convenience, or necessity” require).
In light of our approval of these broad delegations, we harbor no doubt that Congress’ delegation of authority to the Sentencing Commission is sufficiently specific and detailed to meet constitutional requirements. Congress charged the Commission with three goals: to “assure the meeting of the purposes of sentencing as set forth” in the Act; to “provide certainty and fairness in meeting the purposes of sentencing, avoiding unwarranted sentencing disparities among defendants with similar records... while maintaining sufficient flexibility to permit individualized sentences,” where appropriate; and to “reflect, to the extent practicable, advancement in knowledge of human behavior as it relates to the criminal justice process.” 28 U. S. C. §991(b)(1). Congress further specified four “purposes” of sentencing that the Commission must pursue in carrying out its mandate: “to reflect the seriousness of the offense, to promote respect for the law, and to provide just punishment for the offense”; “to afford adequate deterrence to criminal conduct”; “to protect the public from further crimes of the defendant”; and “to provide the defendant with needed... correctional treatment.” 18 U. S. C. § 3553(a)(2).
In addition, Congress prescribed the specific tool — the guidelines system — for the Commission to use in regulating sentencing. More particularly, Congress directed the Commission to develop a system of “sentencing ranges” applicable “for each category of offense involving each category of defendant.” 28 U. S. C. § 994(b). Congress instructed the Commission that these sentencing ranges must be consistent with pertinent provisions of Title 18 of the United States Code and could not include sentences in excess of the statutory maxima. Congress also required that for sentences of imprisonment, “the maximum of the range established for such a term shall not exceed the minimum of that range by more than the greater of 25 percent or 6 months, except that, if the minimum term of the range is 30 years or more, the maximum may be life imprisonment.” § 994(b)(2). Moreover, Congress directed the Commission to use current average sentences “as a starting point” for its structuring of the sentencing ranges. § 994(m).
To guide the Commission in its formulation of offense categories, Congress directed it to consider seven factors: the grade of the offense; the aggravating and mitigating circumstances of the crime; the nature and degree of the harm caused by the crime; the community view of the gravity of the offense; the public concern generated by the crime; the deterrent effect that a particular sentence may have on others; and the current incidence of the offense. §§ 994(c)(1)— (7). Congress set forth 11 factors for the Commission to consider in establishing categories of defendants. These include the offender’s age, education, vocational skills, mental and emotional condition, physical condition (including drug dependence), previous employment record, family ties and responsibilities, community ties, role in the offense, criminal history, and degree of dependence upon crime for a livelihood. § 994(d)(1) — (11). Congress also prohibited the Commission from considering the “race, sex, national origin, creed, and socioeconomic status of offenders,” § 994(d), and instructed that the guidelines should reflect the “general inappropriateness” of considering certain other factors, such as current unemployment, that might serve as proxies for forbidden factors, § 994(e).
In addition to these overarching constraints, Congress provided even more detailed guidance to the Commission about categories of offenses and offender characteristics. Congress directed that guidelines require a term of confinement at or near the statutory maximum for certain crimes of violence and for drug offenses, particularly when committed by recidivists. § 994(h). Congress further directed that the Commission assure a substantial term of imprisonment for an offense constituting a third felony conviction, for a career felon, for one convicted of a managerial role in a racketeering enterprise, for a crime of violence by an offender on release from a prior felony conviction, and for an offense involving a substantial quantity of narcotics. §994(i). Congress also instructed “that the guidelines reflect... the general appropriateness of imposing a term of imprisonment” for a crime of violence that resulted in serious bodily injury. On the other hand, Congress directed that guidelines reflect the general inappropriateness of imposing a sentence of imprisonment “in cases in which the defendant is a first offender who has not been convicted of a crime of violence or an otherwise serious offense.” §994(j). Congress also enumerated various aggravating and mitigating circumstances, such as, respectively, multiple offenses or substantial assistance to the Government, to be reflected in the guidelines. §§ 994(l) and (n). In other words, although Congress granted the Commission substantial discretion in formulating guidelines, in actuality it legislated a full hierarchy of punishment — from near maximum imprisonment, to substantial imprisonment, to some imprisonment, to alternatives — and stipulated the most important offense and offender characteristics to place defendants within these categories.
We cannot dispute petitioner’s contention that the Commission enjoys significant discretion in formulating guidelines. The Commission does have discretionary authority to determine the relative severity of federal crimes and to assess the relative weight of the offender characteristics that Congress listed for the Commission to consider. See §§ 994(c) and (d) (Commission instructed to consider enumerated factors as it deems them to be relevant). The Commission also has significant discretion to determine which crimes have been punished too leniently, and which too severely. § 994(m). Congress has called upon the Commission to exercise its judgment about which types of crimes and which types of criminals are to be considered similar for the purposes of sentencing.
But our cases do not at all suggest that delegations of this type may not carry with them the need to exercise judgment on matters of policy. In Yakus v. United States, 321 U. S. 414 (1944), the Court upheld a delegation to the Price Administrator to fix commodity prices that “in his judgment will be generally fair and equitable and will effectuate the purposes of this Act” to stabilize prices and avert speculation. See id., at 420. In National Broadcasting Co. v. United States, 319 U. S. 190 (1943), we upheld a delegation to the Federal Communications Commission granting it the authority to promulgate regulations in accordance with its view of the “public interest.” In Yakus, the Court laid down the applicable principle:
“It is no objection that the determination of facts and the inferences to be drawn from them in the light of the statutory standards and declaration of policy call for the ex-ereise of judgment, and for the formulation of subsidiary administrative policy within the prescribed statutory framework....
“... Only if we could say that there is an absence of standards for the guidance of the Administrator’s action, so that it would be impossible in a proper proceeding to ascertain whether the will of Congress has been obeyed, would we be justified in overriding its choice of means for effecting its declared purpose....” 321 U. S., at 425-426.
Congress has met that standard here. The Act sets forth more than merely an “intelligible principle” or minimal standards. One court has aptly put it: “The statute outlines the policies which prompted establishment of the Commission, explains what the Commission should do and how it should do it, and sets out specific directives to govern particular situations.” United States v. Chambless, 680 F. Supp. 793, 796 (ED La. 1988).
Developing proportionate penalties for hundreds of different crimes by a virtually limitless array of offenders is precisely the sort of intricate, labor-intensive task for which delegation to an expert body is especially appropriate. Although Congress has delegated significant discretion to the Commission to draw judgments from its analysis of existing sentencing practice and alternative sentencing models, “Congress is not confined to that method of executing its policy which involves the least possible delegation of discretion to administrative officers.” Yakus v. United States, 321 U. S., at 425-426. We have no doubt that in the hands of the Commission “the criteria which Congress has supplied are wholly adequate for carrying out the general policy and purpose” of the Act. Sunshine Coal Co. v. Adkins, 310 U. S. 381, 398 (1940).
IV
Separation of Powers
Having determined that Congress has set forth sufficient standards for the exercise of the Commission’s delegated authority, we turn to Mistretta’s claim that the Act violates the constitutional principle of separation of powers.
This Court consistently has given voice to, and has reaffirmed, the central judgment of the Framers of the Constitution that, within our political scheme, the separation of governmental powers into three coordinate Branches is essential to the preservation of liberty. See, e. g., Morrison v. Olson, 487 U. S. 654, 685-696 (1988); Bowsher v. Synar, 478 U. S., at 725. Madison, in writing about the principle of separated powers, said: “No political truth is certainly of greater intrinsic value or is stamped with the authority of more enlightened patrons of liberty.” The Federalist No. 47, p. 324 (J. Cooke ed. 1961).
In applying the principle of separated powers in our jurisprudence, we have sought to give life to Madison’s view of the appropriate relationship among the three coequal Branches. Accordingly, we have recognized, as Madison admonished at the founding, that while our Constitution mandates that “each of the three general departments of government [must remain] entirely free from the control or coercive influence, direct or indirect, of either of the others,” Humphrey’s Executor v. United States, 295 U. S. 602, 629 (1935), the Framers did not require — and indeed rejected — the notion that the three Branches must be entirely separate and distinct. See, e. g., Nixon v. Administrator of General Services, 433 U. S. 425, 443 (1977) (rejecting as archaic complete division of authority among the three Branches); United States v. Nixon, 418 U. S. 683 (1974) (affirming Madison’s flexible approach to separation of powers). Madison, defending the Constitution against charges that it established insufficiently separate Branches, addressed the point directly. Separation of powers, he wrote, “d[oes] not mean that these [three] departments ought to have no partial agency in, or no controul over the acts of each other,” but rather “that where the whole power of one department is exercised by the same hands which possess the whole power of another department, the fundamental principles of a free constitution, are subverted.” The Federalist No. 47, pp. 325-326 (J. Cooke ed. 1961) (emphasis in original). See Nixon v. Administrator of General Services, 433 U. S., at 442, n. 5. Madison recognized that our constitutional system imposes upon the Branches a degrée of overlapping responsibility, a duty of interdependence as well as independence the absence of which “would preclude the establishment of a Nation capable of governing itself effectively.” Buckley v. Valeo, 424 U. S. 1, 121 (1976). In a passage now commonplace in our cases, Justice Jackson summarized the pragmatic, flexible view of differentiated governmental power to which we are heir:
“While the Constitution diffuses power the better to secure liberty, it also contemplates that practice will integrate the dispersed powers into a workable government. It enjoins upon its branches separateness but interdependence, autonomy but reciprocity.” Youngstown Sheet & Tube Co. v. Sawyer, 343 U. S. 579, 635 (1952) (concurring opinion).
In adopting this flexible understanding of separation of powers, we simply have recognized Madison’s teaching that the greatest security against tyranny — the accumulation of excessive authority in a single Branch — lies not in a hermetic division among the Branches, but in a carefully crafted system of checked and balanced power within each Branch. “[T]he greatest security,” wrote Madison, “against a gradual concentration of the several powers in the same department, consists in giving to those who administer each department, the necessary constitutional means, and personal motives, to resist encroachments of the others.” The Federalist No. 51, p. 349 (J. Cooke ed. 1961). Accordingly, as we have noted many times, the Framers “built into the tripartite Federal Government... a self-executing safeguard against the encroachment or aggrandizement of one branch at the expense of the other.” Buckley v. Valeo, 424 U. S., at 122. See also INS v. Chadha, 462 U. S. 919, 951 (1983).
It is this concern of encroachment and aggrandizement that has animated our separation-of-powers jurisprudence and aroused our vigilance against the “hydraulic pressure inherent within each of the separate Branches to exceed the outer limits of its power.” Ibid. - Accordingly, we have not hesitated to strike down provisions of law that either accrete to a single Branch powers more appropriately diffused among separate Branches or that undermine the authority and independence of one or another coordinate Branch. For example, just as the Framers recognized the- particular danger of the Legislative Branch’s accreting to itself judicial or executive power, so too have we invalidated attempts by Congress to exercise the responsibilities of other Branches or to reassign powers vested by the Constitution in either the Judicial Branch or the Executive Branch. Bowsher v. Synar, 478 U. S. 714 (1986) (Congress may not exercise removal power over officer performing executive functions); INS v. Chadha, supra (Congress may not control execution of laws except through Art. I procedures); Northern Pipeline Construction Co. v. Marathon Pipe Line Co., 458 U. S. 50 (1982) (Congress may not confer Art. Ill power on Art. I judge). By the same token, we have upheld statutory provisions that to some degree commingle the functions of the Branches, but that pose no danger of either aggrandizement or encroachment. Morrison v. Olson, 487 U. S. 654 (1988) (upholding judicial appointment of independent counsel); Commodity Futures Trading Comm’n v. Schor, 478 U. S. 833 (1986) (upholding agency’s assumption of jurisdiction over state-law counterclaims).
In Nixon v. Administrator of General Services, supra, upholding, against a separation-of-powers challenge, legislation providing for the General Services Administration to control Presidential papers after resignation, we described our separation-of-powers inquiry as focusing “on the extent to which [a provision of law] prevents the Executive Branch from accomplishing its constitutionally assigned functions.” 433 U. S., at 443 (citing United States v. Nixon, 418 U. S., at 711-712. In cases specifically involving the Judicial Branch, we have expressed our vigilance against two dangers: first, that the Judicial Branch neither be assigned nor allowed “tasks that are more properly accomplished by [other] branches,” Morrison v. Olson, 487 U. S., at 680-681, and, second, that no provision of law “impermissibly threatens the institutional integrity of the Judicial Branch.” Commodity Futures Trading Comm’n v. Schor, 478 U. S., at 851.
Mistretta argues that the Act suffers from each of these constitutional infirmities. He argues that Congress, in constituting the Commission as it did, effected an unconstitutional accumulation of power within the Judicial Branch while at the same time undermining the Judiciary’s independence and integrity. Specifically, petitioner claims that in delegating to an independent agency within the Judicial Branch the power to promulgate sentencing guidelines, Congress unconstitutionally has required the Branch, and individual Article III judges, to exercise not only their judicial authority, but legislative authority — the making of sentencing policy — as well. Such rulemaking authority, petitioner contends, may be exercised by Congress, or delegated by Congress to the Executive, but may not be delegated to or exercised by the Judiciary. Brief for Petitioner 21.
At the same time, petitioner asserts, Congress unconstitutionally eroded the integrity and independence of the Judiciary by requiring Article III judges to sit on the Commission, by requiring that those judges share their rulemaking authority with nonjudges, and by subjecting the Commission’s members to appointment and removal by the President. According to petitioner, Congress, consistent with the separation of powers, may not upset the balance among the'Branches by co-opting federal judges into the quintessentially political work of establishing sentencing guidelines, by subjecting those judges to the political whims of the

Question: What is the disposition of the case, that is, the treatment the Supreme Court accorded the court whose decision it reviewed?
A. stay, petition, or motion granted
B. affirmed (includes modified)
C. reversed
D. reversed and remanded
E. vacated and remanded
F. affirmed and reversed (or vacated) in part
G. affirmed and reversed (or vacated) in part and remanded
H. vacated
I. petition denied or appeal dismissed
J. certification to or from a lower court
K. no disposition
Answer:

Answer: B