Task: sc_decisiondirection

What follows is an opinion from the Supreme Court of the United States. Your task is to determine the ideological "direction" of the decision ("liberal", "conservative", or "unspecifiable"). Use "unspecifiable" if the issue does not lend itself to a liberal or conservative description (e.g., a boundary dispute between two states, real property, wills and estates), or because no convention exists as to which is the liberal side and which is the conservative side (e.g., the legislative veto). Specification of the ideological direction comports with conventional usage. In the context of issues pertaining to criminal procedure, civil rights, First Amendment, due process, privacy, and attorneys, consider liberal to be pro-person accused or convicted of crime, or denied a jury trial, pro-civil liberties or civil rights claimant, especially those exercising less protected civil rights (e.g., homosexuality), pro-child or juvenile, pro-indigent pro-Indian, pro-affirmative action, pro-neutrality in establishment clause cases, pro-female in abortion, pro-underdog, anti-slavery, incorporation of foreign territories anti-government in the context of due process, except for takings clause cases where a pro-government, anti-owner vote is considered liberal except in criminal forfeiture cases or those where the taking is pro-business violation of due process by exercising jurisdiction over nonresident, pro-attorney or governmental official in non-liability cases, pro-accountability and/or anti-corruption in campaign spending pro-privacy vis-a-vis the 1st Amendment where the privacy invaded is that of mental incompetents, pro-disclosure in Freedom of Information Act issues except for employment and student records. In the context of issues pertaining to unions and economic activity, consider liberal to be pro-union except in union antitrust where liberal = pro-competition, pro-government, anti-business anti-employer, pro-competition, pro-injured person, pro-indigent, pro-small business vis-a-vis large business pro-state/anti-business in state tax cases, pro-debtor, pro-bankrupt, pro-Indian, pro-environmental protection, pro-economic underdog pro-consumer, pro-accountability in governmental corruption, pro-original grantee, purchaser, or occupant in state and territorial land claims anti-union member or employee vis-a-vis union, anti-union in union antitrust, anti-union in union or closed shop, pro-trial in arbitration. In the context of issues pertaining to judicial power, consider liberal to be pro-exercise of judicial power, pro-judicial "activism", pro-judicial review of administrative action. In the context of issues pertaining to federalism, consider liberal to be pro-federal power, pro-executive power in executive/congressional disputes, anti-state. In the context of issues pertaining to federal taxation, consider liberal to be pro-United States and conservative pro-taxpayer. In miscellaneous, consider conservative the incorporation of foreign territories and executive authority vis-a-vis congress or the states or judcial authority vis-a-vis state or federal legislative authority, and consider liberal legislative veto. In interstate relations and private law issues, consider unspecifiable in all cases.

Justice Sotomayor
delivered the opinion of the Court.
This Court has long recognized that sentencing judges “exercise a wide discretion” in the types of evidence they may consider when imposing sentence and that “[h]ighly relevant — if not essential — to [the] selection of an appropriate sentence is the possession of the fullest information possible concerning the defendant’s life and characteristics.” Williams v. New York, 337 U. S. 241, 246-247 (1949). Congress codified this principle at 18 U. S. C. §3661, which provides that “[n]o limitation shall be placed on the information” a sentencing court may consider “concerning the [defendant’s] background, character, and conduct,” and at § 3553(a), which sets forth certain factors that sentencing courts must consider, including “the history and characteristics of the defendant,” § 3553(a)(1). The United States Court of Appeals for the Eighth Circuit concluded in this case that the District Court, when resentencing petitioner after his initial sentence had been set aside on appeal, could not consider evidence of petitioner’s rehabilitation since his initial sentencing. That conclusion conflicts with longstanding principles of federal sentencing law and Congress’ express directives in §§3661 and 3553(a). Although a separate statutory provision, § 3742(g)(2), prohibits a district court at resentencing from imposing a sentence outside the Federal Sentencing Guidelines range except upon a ground it relied upon at the prior sentencing — thus effectively precluding the court from considering postsentencing rehabilitation for purposes of imposing a non-Guidelines sentence — that provision did not survive our holding in United States v. Booker, 543 U. S. 220 (2005), and we expressly invalidate it today.
We hold that when a defendant’s sentence has been set aside on appeal, a district court at resentencing may consider evidence of the defendant’s postsentencing rehabilitation and that such evidence may, in appropriate cases, support a downward variance from the now-advisory Federal Sentencing Guidelines range. Separately, we affirm the Court of Appeals’ ruling that the law of the case doctrine did not require the District Court in this case to apply the same percentage departure from the Guidelines range for substantial assistance that had been applied at petitioner’s prior sentencing.
I
In October 2003, petitioner Jason Pepper was arrested and charged with conspiracy to distribute 500 grams or more of methamphetamine in violation of 21 U. S. C. §846. After pleading guilty, Pepper appeared for sentencing before then-Chief Judge Mark W. Bennett of the U. S. District Court for the Northern District of Iowa. Pepper’s sentencing range under the Guidelines was 97 to 121 months. The Government moved for a downward departure pursuant to USSG § 5K1.1 based on Pepper’s substantial assistance and recommended a 15-percent downward departure. The District Court, however, sentenced Pepper to a 24-month prison term, resulting in an approximately 75-percent downward departure from the low end of the Guidelines range, to be followed by five years of supervised release. The Government appealed Pepper’s sentence, and in June 2005, the Court of Appeals for the Eighth Circuit reversed and remanded for resentencing in light of our intervening decision in Booker (and for another reason not relevant here). See United States v. Pepper, 412 F. 3d 995, 999 (Pepper I). Pepper completed his 24-month sentence three days after Pepper I was issued and began serving his term of supervised release.
In May 2006, the District Court conducted a resentencing hearing and heard from three witnesses. In his testimony, Pepper first recounted that while he had previously been a drug addict, he successfully completed a 500-hour drug treatment program while in prison and he no longer used any drugs. App. 104-105. Pepper then explained that since his release from prison, he had enrolled at a local community college as a full-time student and had earned A’s in all of his classes in the prior semester. Id., at 106-107. Pepper also testified that he had obtained employment within a few weeks after being released from custody and was continuing to work part time while attending school. Id., at 106-110. Pepper confirmed that he was in compliance with all the conditions of his supervised release and described his changed attitude since his arrest. See id., at 111 (“[M]y life was basically headed to either where — I guess where I ended up, in prison, or death. Now I have some optimism about my life, about what I can do with my life. I’m glad that I got this chance to try again I guess you could say at a decent life.... My life was going nowhere before, and I think that it’s going somewhere now”).
Pepper’s father testified that he had virtually no contact with Pepper during the 5-year period leading up to his arrest. Id., at 117. Pepper’s drug treatment program, according to his father, “truly sobered him up” and “made his way of thinking change.” Id., at 121. He explained that Pepper was now “much more mature” and “serious in terms of planning for the future,” id., at 119, and that as a consequence, he had reestablished a relationship with his son, id., at 118-119.
Finally, Pepper’s probation officer testified that, in his view, a 24-month sentence would be reasonable in light of Pepper’s substantial assistance, postsentencing rehabilitation, and demonstrated low risk of recidivism. Id., at 126-131. The probation officer also prepared a sentencing memorandum that further set forth the reasons supporting his recommendation for a 24-month sentence.
The District Court adopted as its findings of fact the testimony of the three witnesses and the probation officer’s sentencing memorandum. The court granted a 40-percent downward departure based on Pepper’s substantial assistance, reducing the bottom of the Guidelines range from 97 to 58 months. The court then granted a further 59-percent downward variance based on, inter alia, Pepper’s rehabilitation since his initial sentencing. Id., at 143-148. The court sentenced Pepper to 24 months of imprisonment, concluding that “it would [not] advance any purpose of federal sentencing policy or any other policy behind the federal sentencing guidelines to send this defendant back to prison.” Id., at 149-150.
The Government again appealed Pepper’s sentence, and the Court of Appeals again reversed and remanded for re-sentencing. See United States v. Pepper, 486 F. 3d 408, 410, 413 (CA8 2007) (Pepper II). The court concluded that, while it was “a close call, [it could not] say the district court abused its discretion” by granting the 40-percent downward departure for substantial assistance. Id., at 411. The court found the further 59-percent downward variance, however, to be an abuse of discretion. Id., at 412-413. In doing so, the court held that Pepper’s “post-sentencing rehabilitation was an impermissible factor to consider in granting a downward variance.” Id., at 413. The court stated that evidence of postsenteneing rehabilitation “ ‘is not relevant and will not be permitted at resentencing because the district court could not have considered that evidence at the time of the original sentencing,’” and permitting courts to consider postsenteneing rehabilitation at resentencing “would create unwarranted sentencing disparities and inject.blatant inequities into the sentencing process.” Ibid. The Court of Appeals directed that the case be assigned to a different district judge for resentencing. Ibid.
After the Court of Appeals’ mandate issued, Pepper’s case was reassigned on remand to Chief Judge Linda R. Reade. In July 2007, Chief Judge Reade issued an order on the scope of the remand from Pepper II, stating that “[t]he court will not consider itself bound to reduce [Pepper’s] advisory Sentencing Guidelines range by 40% pursuant to USSG §5K1.1.” United States v. Pepper, No. 03-CR-4113-LRR, 2007 WL 2076041, *4 (ND Iowa). In the meantime, Pepper petitioned this Court for a writ of certiorari, and in January 2008, we granted the petition, vacated the judgment in Pepper II, and remanded the case to the Court of Appeals for further consideration in light of Gall v. United States, 552 U. S. 38 (2007). See Pepper v. United States, 552 U. S. 1089 (2008).
On remand, the Court of Appeals held that Gall did not alter its prior conclusion that “post-sentence rehabilitation is an impermissible factor to consider in granting a downward variance.” 518 F. 3d 949, 953 (CA8 2008) (Pepper III). The court again reversed the sentence and remanded for resentencing.
In October 2008, Chief Judge Reade convened Pepper’s second' resentencing hearing: Pepper informed the court that he was still attending school and was now working as a supervisor for the night crew at a warehouse retailer, where he was recently selected by management as “associate of the year” and was likely to be promoted the following January. App. 320, 323. Pepper also stated that he had recently married and was now supporting his wife and her daughter. Id., at 321. Pepper’s father reiterated that Pepper was moving forward in both his career and his family life and that he remained in close touch with his son. See id., at 300-304.
In December 2008, Chief Judge Reade issued a sentencing memorandum. Noting that the remand language of Pepper III was nearly identical to the language in Pepper II, the court again observed that it was “not bound to reduce [Pepper’s] advisory Sentencing Guidelines range by 40%” for substantial assistance and concluded that Pepper was entitled only to a 20-percent downward departure because the assistance was “timely, helpful and important” but “in no way extraordinary.” Sealed Sentencing Memorandum in No. 03-CR-4113-LRR (ND Iowa), Record, Doc. 198, pp. 7, 10. The court also rejected Pepper’s request for a downward variance based on, inter alia, his postsentencing rehabilitation. Id., at 16.
The District Court reconvened Pepper’s resentencing hearing in January 2009. The court’s decision to grant a 20-percent downward departure for substantial assistance resulted in an advisory Guidelines range of 77 to 97 months. The court also granted the Government’s motion under Rule 35(b) of the Federal Rules of Criminal Procedure to account for investigative assistance Pepper provided after he was initially sentenced. The court imposed a 65-month term of imprisonment, to be followed by 12 months of supervised release.
The Court of Appeals affirmed Pepper’s 65-month sentence. 570 F. 3d 958 (CA8 2009) (Pepper IV). As relevant here, the Court of Appeals rejected Pepper’s argument that the District Court erred in refusing to consider his postsen-teneing rehabilitation. The court acknowledged that “Pepper made significant progress during and following his initial period of imprisonment” and “commend[ed] Pepper on the positive changes he has made in his life,” but concluded that Pepper’s argument was foreclosed by Circuit precedent holding that “post-sentencing rehabilitation is not a permissible factor to consider in granting a downward variance.” Id., at 964-965 (citing United States v. Jenners, 473 F. 3d 894, 899 (CA8 2007); United States v. McMannus, 496 F. 3d 846, 852, n. 4 (CA8 2007)).
The Court of Appeals also rejected Pepper’s claim that the scope of the remand and the law of the case from Pepper II and Pepper III required the District Court to reduce the applicable Guidelines range by at least 40 percent pursuant to USSG §5K1.1. The court noted that its remand orders in Pepper II and Pepper III were “general remand[s] for resentencing,” which “did not place any limitations on the discretion of the newly assigned district court judge in re-sentencing.” 570 F. 3d, at 963. The court further noted that, although issues decided by an appellate court become law of the case on remand to the sentencing court, its earlier decisions merely held that a 40-percent downward departure for substantial assistance was not an abuse of discretion, not that the District Court would be bound by the 40-percent departure previously granted. Id., at 963-964.
We granted Pepper’s petition for a writ of certiorari, 561 U. S. 1024 (2010), to decide two questions: (1) whether a district court, after a defendant’s sentence has been set aside on appeal,, may consider evidence of a defendant’s postsen-tencing rehabilitation to support a downward variance when resentencing the defendant, a question that has divided the Courts of Appeals; and (2) whether the resentencing court was required, under the law of the ease doctrine, to apply the same percentage departure from the Guidelines range for substantial assistance that had been applied at Pepper’s prior sentencing. Because the United States has confessed error in the Court of Appeals’ ruling on the first question, we appointed an amicus curiae to defend the Court of Appeals’ judgment. We now vacate the Eighth Circuit’s ruling on the first question and affirm its ruling on the second.
II
A
“It has been uniform and constant in the federal judicial tradition for the sentencing judge to consider every convicted person as an individual and every case as a unique study in the human failings that sometimes mitigate, sometimes magnify, the crime and the punishment to ensue.” Koon v. United States, 518 U. S. 81, 113 (1996). Underlying this tradition is the principle that “the punishment should fit the offender and not merely the crime.” Williams, 337 U. S., at 247; see also Pennsylvania ex rel. Sullivan v. Ashe, 302 U. S. 51, 55 (1937) (“For the determination of sentences, justice generally requires consideration of more than the particular acts by which the crime was committed and that there be taken into account the circumstances of the offense together with the character and propensities of the offender”).
Consistent with this principle, we have observed that “both before and since the American colonies became a nation, courts in this country and in England practiced a policy under which a sentencing judge could exercise a wide discretion in the sources and types of evidence used to assist him in determining the kind and extent of punishment to be imposed within limits fixed by law.” Williams, 337 U. S., at 246. In particular, we have emphasized that “[hjighly relevant — if not essential — to [the] selection of an appropriate sentence is the possession of the fullest information possible concerning the defendant’s life and characteristics.” Id., at 247. Permitting sentencing courts to consider the widest possible breadth of information about a defendant “ensures that the punishment will suit not merely the offense but the individual defendant.” Wasman v. United States, 468 U. S. 559, 564 (1984).
In 1970, Congress codified the “longstanding principle that sentencing courts have broad discretion to consider various kinds of information” at 18 U. S. C. § 3577 (1970 ed.). United States v. Watts, 519 U. S. 148, 151 (1997) (per curiam). Section 3577 provided:
“No limitation shall be placed on the information concerning the background, character, and conduct of a person convicted of an offense which a court of the United States may receive and consider for the purpose of imposing an appropriate sentence.” (Emphasis added.)
In the Sentencing Reform Act of 1984 (SRA), 18 U. S. C. §3551 et seq., Congress effected fundamental changes to federal sentencing by creating the Federal Sentencing Commission and introducing the Guidelines scheme. In doing so, however, Congress recodified §3577 without change at §3661. The Sentencing Commission, moreover, expressly incorporated § 3661 in the Guidelines:
“In determining the sentence to impose within the guideline range, or whether a departure from the guidelines is warranted, the court may consider, without limitation, any information concerning the background, character and conduct of the defendant, unless otherwise prohibited by law. See 18 U. S. C. § 3661.” USSG § 1B1.4 (Nov. 2010) (emphasis added).
Both Congress and the Sentencing Commission thus expressly preserved the traditional discretion of sentencing courts to “conduct an inquiry broad in scope, largely unlimited either as to the kind of information [they] may consider, or the source from which it may come.” United States v. Tucker, 404 U. S. 443, 446 (1972).
The SRA did constrain sentencing courts’ discretion in important respects, most notably by making the Guidelines mandatory, see 18 U. S. C. § 3553(b)(1) (2000 ed., Supp. IV), and by specifying various factors that courts must consider in exercising their discretion, see § 3553(a). In our seminal decision in Booker, we held that where facts found by a judge by a preponderance of the evidence increased the applicable Guidelines range, treating the Guidelines as mandatory in those circumstances violated the Sixth Amendment right of criminal defendants to be tried by a jury and to have every element of an offense proved by the Government beyond a reasonable doubt. 543 U. S., at 243-244. Our remedial opinion in Booker invalidated two offending provisions in the SRA, see id., at 245 (invalidating 18 U. S. C. §§ 3553(b)(1), 3742(e)), and instructed the district courts to treat the Guidelines as “effectively advisory,” 543 U. S., at 245.
Our post-Booker opinions make clear that, although a sentencing court must “give respectful consideration to the Guidelines, Booker permits the court to tailor the sentence in light of other statutory concerns as well.” Kimbrough v. United States, 552 U. S. 85, 101 (2007) (internal quotation marks and citation omitted). Accordingly, although the “Guidelines should be the starting point and the initial benchmark,” district courts may impose sentences within statutory limits based on appropriate consideration of all of the factors listed in § 3553(a), subject to appellate review for “reasonableness.” Gall, 552 U. S., at 49-51. This sentencing framework applies both at a defendant’s initial sentencing and at any subsequent resentencing after a sentence has been set aside on appeal. See 18 U. S. C. § 3742(g) (“A district court to which a case is remanded... shall resen-tenee a defendant in accordance with section 3553”); see also Dillon v. United States, 560 U. S. 817, 828, 827 (2010) (distinguishing between “sentence-modification proceedings” under 18 U. S. C. § 3582(c)(2), which “do not implicate the interests identified in Booker,” and “plenary resentencing proceedings,” which do).
B
In light of the federal sentencing framework described above, we think it clear that when a defendant’s sentence has been set aside oh appeal and his case remanded for resen-tencing, a district court may consider evidence of a defendant’s rehabilitation since his prior sentencing and that such evidence may, in appropriate cases, support a downward variance from the advisory Guidelines range.
Preliminarily, Congress could not have been clearer in directing that “[n]o limitation... be placed on the information concerning the background, character, and conduct” of a defendant that a district court may “receive and consider for the purpose of imposing an appropriate sentence.” 18 U. S. C. §3661. The plain language of §3661 makes no distinction between a defendant’s initial sentencing and a subsequent resentencing after a prior sentence has been set aside on appeal. We have recognized that “the broad language of § 3661” does not provide “any basis for the courts to invent a blanket prohibition against considering certain types of evidence at sentencing.” Watts, 519 U. S., at 152. A categorical bar on the consideration of postsentencing rehabilitation evidence would directly contravene Congress’ expressed intent in § 3661.
In addition, evidence of postsentencing rehabilitation may be highly relevant to several of the § 3553(a) factors that Congress has expressly instructed district courts to consider at sentencing. For example, evidence of postsentencing rehabilitation may plainly be relevant to “the history and characteristics of the defendant.” § 3553(a)(1). Such evidence may also be pertinent to “the need for the sentence imposed” to serve the general purposes of sentencing set forth in § 3553(a)(2) — in particular, to “afford adequate deterrence to criminal conduct,” “protect the public from farther crimes of the defendant,” and “provide the defendant with needed educational or vocational training... or other correctional treatment in the most effective manner.” §§ 3553(a)(2)(B)-(D); see McMannus, 496 F. 3d, at 853 (Melloy, J., concurring) (“In assessing... deterrence, protection of the public and rehabilitation, 18 U.S. C. § 3553(a)(2)(B)(C) & (D), there would seem to be no better evidence than a defendant’s post-incarceration conduct”). Postsentencing rehabilitation may also critically inform a sentencing judge’s overarching duty under § 3553(a) to “impose a sentence sufficient, but not greater than necessary,” to comply with the sentencing purposes set forth in § 3553(a)(2).
As the original sentencing judge recognized, the extensive evidence of Pepper’s rehabilitation since his initial sentencing is clearly relevant to the selection of an appropriate sen-tenee in this case. Most fundamentally, evidence of Pepper’s conduct since his release from custody in June 2005 provides the most up-to-date picture of Pepper’s “history and characteristics.” § 3553(a)(1); see United States v. Bryson, 229 F. 3d 425, 426 (CA2 2000) (per curiam) (“[A] court’s duty is. always to sentence the defendant as he stands before the court on the day of sentencing”). At the time of his initial sentencing in 2004, Pepper was a 25-year-old drug addiet who was unemployed, estranged from his family, and had recently sold drugs as part of a methamphetamine conspiracy. By the time of his second resentencing in 2009, Pepper had been drug free for nearly five years, had attended college and achieved high grades, was a top employee at his job slated for a promotion, had reestablished a relationship with his father, and was married and supporting his wife’s daughter. There is no question that this evidence of Pepper’s conduct since his initial sentencing constitutes a critical part of the “history and characteristics” of a defendant that Congress intended sentencing courts to consider. § 3553(a).
Pepper’s postsentencing conduct also sheds light on the likelihood that he will engage in future criminal conduct, a central factor that district courts must assess when imposing sentence. See §§3553(a)(2)(B)-(C); Gall, 552 U. S., at 59 (“Gall’s self-motivated rehabilitation... lends strong support to the conclusion that imprisonment was not necessary to deter Gall from engaging in future criminal conduct or to protect the public from his future criminal acts” (citing §§ 3553(a)(2)(B)-(C))). As recognized by Pepper’s probation officer, Pepper’s steady employment, as well as his successful completion of a 500-hour drug treatment program and his drug-free condition, also suggest a diminished need for “educational or vocational training... or other correctional treatment.” § 3553(a)(2)(D). Finally, Pepper’s exemplary postsentencing conduct may be taken as the most accurate indicator of “his present purposes and tendencies and significantly to suggest the period of restraint and the kind of discipline that ought to be imposed upon him.” Ashe, 302 U. S., at 55. Accordingly, evidence of Pepper’s postsen-tencing rehabilitation bears directly on the District Court’s overarching duty to “impose a sentence sufficient, but not greater than necessary,” to serve' the purposes of sentencing. § 3553(a).
In sum, the Court of Appeals’ ruling prohibiting the District Court from considering any evidence of Pepper’s postsentencing rehabilitation at resentencing conflicts with longstanding principles of federal sentencing law and contravenes Congress’ directives in §§3661 and 3553(a).
C
Amicus nevertheless advances two principal arguments in defense of the Court of Appeals’ ruling: (1) 18 U. S. C. § 3742(g)(2), which restricts the discretion of a resentencing court on remand to impose a non-Guidelines sentence, effectively forecloses consideration of a defendant’s postsentenc-ing rehabilitation; and (2) permitting district courts to consider postsentencing rehabilitation would defeat Congress’ objectives under § 3553(a). We are not persuaded.
1
Amicus’ main argument relies on 18 U. S. C. § 3742(g)(2), a provision that the Court of Appeals did not cite below. That provision states that when a sentence is set aside on appeal, the district court to which the case is remanded:
“shall not impose a sentence outside the applicable guidelines range except upon a ground that—
“(A) was specifically and affirmatively included in the written statement of reasons required by section 3553(c) in connection with the previous sentencing of the defendant prior to the appeal; and
“(B) was held by the court of appeals, in remanding the case, to be a permissible ground of departure.”
In operation, § 3742(g)(2) restricts the discretion of a district court on remand by precluding the court from imposing a sentence outside the Guidelines range except upon a “ground of departure” that was expressly relied upon in the prior sentencing and upheld on appeal. Amicus thus correctly contends that, on its face, § 3742(g)(2) effectively forecloses a resentencing court from considering evidence of a defendant’s postsentencing rehabilitation for purposes of imposing a non-Guidelines sentence because, as a practical matter, such evidence did not exist at the time of the prior sentencing. As the Government concedes, however, § 3742(g)(2) is invalid after Booker.
As we have explained, Booker held that where judicial factfinding increases a defendant’s applicable Sentencing Guidelines range, treating the Guidelines as mandatory in those circumstances would violate the defendant’s Sixth Amendment right to be tried by a jury and to have every element of an offense proved by the Government beyond a reasonable doubt. See supra, at 489-490. We recognized in Booker that, although the SRA permitted departures from the applicable Guidelines range in limited circumstances, “departures are not available in every case, and in fact are unavailable in most.” 543 U. S., at 234. Because in those instances, “the judge is bound to impose a sentence within the Guidelines range,” we concluded that the availability of departures in certain circumstances “does not avoid the constitutional issue.” Ibid.
To remedy the constitutional problem, we rendered the Guidelines effectively advisory by invalidating two provisions of the SRA: 18 U. S. C. § 3553(b)(1) (2000 ed., Supp. IV), which generally required sentencing courts to impose a sentence within the applicable Guidelines range, and § 3742(e) (2000 ed. and Supp. IV), which prescribed the standard of appellate review, including de novo review of Guidelines departures. 543 U. S., at 259. We invalidated these provisions even though we recognized that mandatory application of the Guidelines would not always result in a Sixth Amendment violation. Indeed, although the Government suggested in Booker that we render the Guidelines advisory only in cases in which the Constitution prohibits judicial fact-finding, we rejected that two-track proposal, reasoning that “Congress would not have authorized a mandatory system in some cases and a nonmandatory system in others, given the administrative complexities that such a system would create.” Id., at 266; see Dillon, 560 U. S., at 829-830 (“The incomplete remedy we rejected in Booker would have required courts to treat the Guidelines differently in similar proceedings, leading potentially to unfair results and considerable administrative challenges”).
We did not expressly mention § 3742(g)(2) in Booker, but the rationale we set forth in that opinion for invalidating §§ 3553(b)(1) and 3742(e) applies equally to § 3742(g)(2). As with those provisions, § 3742(g)(2) requires district courts effectively to treat the Guidelines as mandatory in an entire set of cases. Specifically, § 3742(g)(2) precludes a district court on remand from imposing a sentence “outside the applicable guidelines range” except upon a “ground of departure” that was expressly relied upon by the court at the prior sentencing and upheld by the court of appeals. In circumstances in which the district court did not rely upon such a departure ground at the prior sentencing, § 3742(g)(2) would require the court on remand to impose a sentence within the applicable Guidelines range, thus rendering the Guidelines effectively mandatory. Because in a large set of cases, judicial factfinding will increase the applicable Guidelines range beyond that supported solely by the facts established by the jury verdict (or guilty plea), requiring a sentencing judge on remand to apply the Guidelines range, as § 3742(g)(2) does, will often result in a Sixth Amendment violation for the reasons we explained in Booker. Accordingly, as with the provisions in Booker, the proper remedy here is to invalidate § 3742(g)(2).
The sentencing proceeding at issue in Booker itself illustrates why § 3742(g)(2) cannot withstand Sixth Amendment scrutiny. The District Court in Booker increased the defendant's then-mandatory Guidelines range based on a drug-quantity finding that it, rather than the jury, made. 543 U. S., at 227. After we held that the Guidelines must be treated as advisory, we remanded the case for resentencing. Id., at 267. Had § 3742(g)(2) remained valid after Booker, the District Court on remand would have been required to sentence within the Guidelines range because it did not depart from the Guidelines at the original sentencing. Accordingly, the resentencing judge in Booker would have been required under § 3742(g)(2) to impose a Guidelines sentence based on judge-found facts concerning drug quantity, the precise result that Booker forbids.
The same result would occur in any sentencing in which a district court erroneously refuses to impose a sentence outside the Guidelines range “based on a misunderstanding of its authority to depart under or vary from the Guidelines.” Reply Brief for United States 16. For example, if § 3742(g)(2) remained valid, there would be no remedy at re-sentencing if a district court erroneously believed the Guidelines were presumptively reasonable, see Nelson v. United States, 555 U. S. 350, 352 (2009) (per curiam), or if it mistakenly thought that a non-Guidelines sentence required extraordinary circumstances, see Gall, 552 U. S., at 47, or if it incorrectly concluded that it could not vary from the Guidelines based on a policy disagreement with their disparate treatment of crack and powder cocaine, see Kimbrough, 552 U. S., at 101. In such cases, the district court at the initial sentencing proceeding will necessarily have imposed a sentence within the Guidelines range, and thus § 3742(g)(2) would require the imposition of a Guidelines sentence on remand. See Reply Brief for Petitioner 3-5 (describing further categories of cases where “the Booker remedy would be entirely unavailable if § 3742(g)(2) were valid”).
To be sure, applying § 3742(g)(2) at resentencing would not always result in a Sixth Amendment violation. For example, where the applicable Guidelines range rests solely on facts found by a jury beyond a reasonable doubt, application of § 3742(g)(2) at resentencing would not render the sentence constitutionally infirm. But, as explained above, that possibility was equally true with respect to the sentencing provisions we invalidated in Booker. See supra, at 495. As with those provisions, “we cannot assume that Congress, if faced with the statute’s invalidity in key applications, would have preferred to apply the statute in as many other instances as possible.” 543 U. S., at 248. Just as we rejected a two-track system in Booker that would have made the Guidelines mandatory in some cases and advisory in others, we reject a partial invalidation of § 3742(g)(2) that would leave us with the same result.
The fact that § 3742(g)(2) permits a resentencing court on remand to impose a non-Guidelines sentence in cases where the prior sentence expressly relied upon a departure upheld by the court of appeals also does not cure the constitutional infirmity. As explained above, we observed in Booker that the availability of departures from the applicable Guidelines ranges in specified circumstances “does not avoid the constitutional issue.” Id., at 234. Because “departures are not available in every case, and in fact are unavailable in most,” ibid., we held that remedying the Sixth Amendment problem required invalidation of § 3553(b)(1). That same remedial approach requires us to invalidate § 3742(g)(2).
Amicus contends that any constitutional infirmity in § 3742(g)(2) can be remedied by invalidating §3742(j)(1)(B) rather than § 3742(g)(2). Brief for Amicus Curiae in Support of Judgment Below 21-22. Section 3742(j)(1)(B) provides that a “ground of departure” is “permissible” for purposes of § 3742(g)(2)(B) only if it is, inter alia, “authorized under section 3553(b).” In Booker, we noted that “statutory cross-references” to the SEA provisions we invalidated were also constitutionally infirm. 543 U. S., at 259. Because § 3742(j)(1)(B) incorporates a cross-reference to § 3553(b)(1), one of the provisions we invalidated in Booker, amicus suggests that invalidating § 3742(j)(1)(B) would cure any constitutional defect in § 3742(g)(2)(B). As the Government explains, however, even if § 3742(j)(1)(B) were invalidated and a district court could depart on any ground at an initial sentencing, the district court would not be able to depart on any new ground at resentencing so long as § 3742(g)(2) remains in force. Because amicus’ proposed solution would still result in the Guidelines being effectively mandatory at re-sentencing in an entire set of eases, it fails to remedy the fundamental constitutional defect of § 3742(g)(2).
2
Amicus’ next cluster of arguments focuses on Congress’ sentencing objectives under § 3553(a). Preliminarily, ami-cus contends that even if §

Question: What is the ideological direction of the decision?
A. Conservative
B. Liberal
C. Unspeciﬁable
Answer:

Answer: B