This appeal, in which we are asked to review the district court’s denial of a motion to reconsider a sentence previously imposed, presents yet another permutation of an existing application of the “law of the case” doctrine. For the reasons limned herein, we affirm the district court’s order.
I. BACKGROUND
Defendant-appellant Gerald Connell pleaded guilty to an information that charged him with structuring cash transactions to avoid certain reporting requirements. See 31 U.S.C. §§ 5313, 5324 (1988). At a sentencing hearing held on June 26, 1991, the district court imposed a prison sentence (thirty months) that fell within the guideline sentencing range (GSR), fixed a supervised release period, fined Connell $15,000, and directed him to pay the costs of his forthcoming confinement at the rate of $1,415.56 per month.
Connell appealed, complaining that his offense level had been improperly constituted, thereby inflating the GSR. We affirmed the sentence,
see United States v. Connell,
*29 After the case returned to the district court, defendant sought an adjustment of sentence based on the changed guideline and also moved for reconsideration of the $15,000 fine. The court heard oral argument on May 7, 1992. It issued an order on that date recomputing the GSR in line with the revised guideline and reducing Connell’s prison term to twenty-seven months, but leaving the fine intact. The cost-of-confinement portion of the sentence remained unchallenged and unchanged (except that the court’s estimate of overall cost was lowered to reflect the three-month decrease in the term of immurement). An amended judgment was entered on or about May 28, 1992. Connell appealed from the order and judgment, but let the appeal slide. The amended judgment thus became final.
Some seven months later, Connell shifted gears. He retained new counsel and filed a further motion for reconsideration of sentence in which he raised, for the first time, a complaint about the cost-of-confinement order. 2 The district court denied the motion. 3 This appeal followed.
II. DISCUSSION
Connell appeals the denial of his December 1992 motion for reconsideration, sounding two variations on a single theme: that U.S.S.G. § 5E1.2(i), which provides for cost-of-confinement orders in certain criminal eases,
4
is unconstitutional or, alternatively, is in excess of the Sentencing Commission’s statutory powers. Although the challenge itself is not frivolous,
compare, e.g., United States v. Spiropoulos,
This case is analogous in factual profile and legal stance to
United States v. Bell,
At the resumed sentencing hearing, Bell for the first time sought to challenge the validity of his prior convictions and, through that medium, his ACCA status. The district court ruled that the objection was untimely and sentenced Bell as an armed career criminal.
See Bell II,
The lesson of the Bell cases is as clear as their namesake:
[A] legal decision made at one stage of a civil or criminal case, unchallenged in a subsequent appeal despite the existence of ample opportunity to do so, becomes the law of the case for future stages of the same litigation, and the aggrieved party is deemed to have forfeited any right to challenge that particular decision at a subsequent date.
Id.
at 250. This lesson embodies a rather straightforward application of the law of the case doctrine—a doctrine that is rooted in an array of prudential considerations: “stability in the decisionmaking process, predictability of results, proper working relationships between trial and appellate courts, and judicial economy.”
United States v. Rivera-Martinez,
We think it follows that when a trial court, on remand, seeks to dispose of a case in accordance with an appellate court’s mandate, it “must implement both the letter and the spirit of the mandate, taking into account the appellate court’s opinion and the circumstances it embraces.”
United States v. Kikumura,
The case before us is governed by these rules. In 1991, the district court invoked U.S.S.G. § 5E1.2(i) and sentenced Connell, inter alia, to pay the costs of his confinement. Connell appealed his sentence, but eschewed any challenge to the cost-of-confinement order. Having foregone that opportunity, Connell could not thereafter insist that the district court exceed the limited scope of our remand in order to revisit a settled issue.
*31
In this ease, moreover, Connell defaulted not once, but twice. As we have indicated, he did not challenge the eost-of-confinement order on his direct appeal. He then compounded his difficulties by omitting any reference to the order in the proceedings that immediately followed our remand. His afterthought request for reconsideration, occurring, as it did, some seven months after the district court had fulfilled its mission on remand—and well beyond the expiration of the appeal period in respect to the revised sentence—came too late.
See, e.g., United States v. Ramirez,
To be sure, neither the law of the case doctrine nor its kissing cousin, the so-called “mandate rule,” is designed to function as a straitjacket. Rather, these are discretion-guiding principles, generally thought to be subject to exceptions in the interests of justice.
5
See Bell II,
III. CONCLUSION
We need go no further.
6
Courts can only function under the aegis of rules—and parties who ignore the rules do so at their peril.
See, e.g., Puleio v. Vose,
Affirmed.
Notes
. The revision to the guidelines involved the number of levels that should be added to a defen
*29
dant’s base offense level in a case where, as here, criminally derived funds were knowingly laundered. The extent, timing, and effect of the revision are explained in our earlier opinion,
see Connell,
. Connell filed this motion in the district court on November 24, 1992, and filed an amended motion on December 23, 1992. For ease in reference, we treat these pleadings as a single motion, sometimes styled the “December 1992 motion for reconsideration.”
. Although the government has not raised the point, we question whether the district court, so long after the appeal period expired, had jurisdiction to entertain Connell’s motion for reconsideration.
See United States v. Miller,
.The guideline provides in pertinent part:
Notwithstanding the provisions of subsection (c) [the fine table] of this section, but subject to the provisions of subsection (f) [discussing the defendant’s ability to pay] ..., the court shall impose an additional fine amount that is at least sufficient to pay the costs to the government of any imprisonment, probation, or supervised release ordered.
U.S.S.G. § 5E1.2(i).
. Although it is not altogether clear that a trial court on a limited remand may exceed, for whatever reason, the scope of the appellate court’s mandate,
see Bell II,
. Citing a November 1992 amendment to U.S.S.G. § 3E1.1, Connell’s December 1992 motion for reconsideration also asserted an entitlement to a more extravagant credit for acceptance of responsibility. The district court hewed to the original two-level decrease for acceptance of responsibility because it did not believe that the 1992 amendment could be applied retroactively. This court later reached the same conclusion in an unrelated case.
See United States
v.
Desouza,
