For this appeal, the threshold issue is our jurisdiction vel non to consider the district court’s permitting an amendment joining a party, which resulted in both the destruction of diversity of citizenship and the remand of the action to state court. On the one hand, if we have jurisdiction, we must consider whether allowing the amendment was proper. On the other hand, if jurisdiction is lacking, we must consider the constitutionality of 28 U.S.C. § 1447(d)’s preclusion of our review. (Section 1447(d) bars review of remand orders except in certain civil rights cases.) Because we lack jurisdiction and § 1447(d) is constitutional, the appeal is DISMISSED.
I.
In November 1998, Lilah Joyce Doleac filed this wrongful death action in state court, claiming Dr. Arne Michalson was negligent in failing to discover an aneurysm while reviewing an MRI of her husband, Louis Doleac. Several years after the MRI, Mr. Doleac died of complications arising from the aneurysm.
In addition to Dr. Michalson, the original complaint listed as defendants “John Does A, B, C and D”, identified as
parties to this action whose identities are unknown at this time, ... [who are] other health care providers or persons ... which at any time undertook ... or had a duty to provide medical care or services to the Plaintiff and whose negligence ... and/or accountable conduct caused or contributed to the Plaintiffs damages and injuries as alleged herein.
When the action was filed, Dr. Michal-son was a citizen of Idaho; Plaintiff, of Mississippi. Therefore, that December, Dr. Michalson removed this action to federal court on the basis of diversity of citizenship. - 28 U.S.C. §§ 1332, 1441, 1446. The day after removal, the magistrate judge issued an order concerning the fictitious parties.
,[A qjuestion appears regarding subject matter jurisdiction.... Plaintiff shall file [a] remand motion bringing jurisdictional concerns to issue or identify, if possible, some of [the] John Doe medical defendants, most of whom would seem to be residents of this state as was the removing defendant when this alleged negligent act[ ] occurred. Under certain circumstances, [a] case can be remanded when [a] necessary defendant] sued under [a] ficti[ti]ous name is identified to be non-diverse even though John Doe defendants [are] disregarded for original removal purposes pursuant to [the] 1988 Act [, 28 U.S.C. § 1441(a) ].
(Emphasis added.) The court stayed discovery pending remand vel non.
Plaintiff moved to remand in January 1999, asserting that removal was improper “due to the existence of as yet unidentified John Does [sic] Defendants, which are, upon information and belief, resident citizens ... of Mississippi” and requesting limited discovery to determine the identity of those defendants.
Five months later, in June 1999, Plaintiff moved to amend her complaint to add as a co-defendant Gulf Coast Imaging, P.A. *474 (GCI), a citizen of Mississippi. Plaintiff alleged that Dr. Michalson had acted under GCI’s direction and supervision and that its employees assisted him.in reading the films at issue and/or in completing the report. The putative amended complaint named as defendants Dr. Michalson, GCI, and John Does A through F. (As discussed infra, the parties dispute whether GCI was substituted for a John Doe defendant or added as a new party.)
In considering whether to allow the amendment to add a non-diverse party whose inclusion would destroy diversity and thereby divest the court of jurisdiction, the district court considered four factors it gleaned from Hensgens v. Deere & Co.:
(1) the extent to which the purpose of the amendment is to defeat federal jurisdiction,
(2) whether plaintiff has been dilatory in asking for amendment,
(3) whether plaintiff will be significantly injured if amendment is not allowed, and
(4) any other factors bearing on the equities.
Doleac v. Michalson,
No. 1:98-CV-553-BrR (S.D. Miss. 28 Sept. 1999) (unpublished) (emphasis added) (citing
Hensgens v. Deere & Co.,
II.
Dr. Michalson maintains we have jurisdiction to review the order which allowed the amendment and then remanded, asserting that the amendment is both separable and, under the collateral order doctrine, appealable. Notwithstanding the facial simplicity of this issue, the precedent addressing our jurisdiction is complex. In addition to asserting we have jurisdiction, Dr. Michalson contends: the district court erred in failing to apply 28 U.S.C. § 1441(a) (John Doe defendants ignored for purposes of removal); and, if the order is reviewable, the district court abused its discretion in allowing the amendment. 2 In the alternative, he contests the constitutionality of § 1447(d), which precludes appellate review when the remand is for lack *475 of subject matter jurisdiction. 3 (Pursuant to 28 U.S.C. § 2403, the United States was permitted to intervene to defend the constitutionality of § 1447(d).)
A.
The parties dispute whether GCI was substituted for one of the John Does or added under Federal Rule of Civil Procedure 19. Although Doleac stated that the motion to amend under Rule 15(a) was in response to the magistrate judge’s suggestion that Doleac attempt to identify the John Does, the district court treated the amendment as a joinder under Rules 15, 20, and 21 (not Rule 19), and the amended complaint names as defendants Dr. Mi-chalson, GCI, and John Does A-F (¿a, the John Does in the original complaint all reappear in the amended complaint 4 ).
1.
Dr. Michalson asserts that, if GCI was substituted for a John Doe defendant, § 1441(a) precludes consideration of its citizenship. We disagree. Even assuming GCI was so substituted (rather than added as a new party), its presence destroyed diversity and defeated subject matter jurisdiction.
Section 1441(a) states: “For purposes of removal under this chapter, the citizenship of defendants sued under fictitious names shall be disregarded”. 28 U.S.C. § 1441(a). Section 1447(e) allows joinder and remand to state court if, after removal, “the plaintiff seeks to join additional defendants whose joinder would destroy subject matter jurisdiction”. 28 U.S.C. § 1447(e).
Dr. Michalson admits that, under a traditional view of case law, and pursuant to §§ 1447(c) and (e) and 1332(c), the action could not remain in federal court after the addition of GCI. Nevertheless, he contends that § 1441(a)’s “plain language” applies even after a John Doe defendant has been identified. He distinguishes the identification of a John Doe from the situation covered by § 1447(e), explaining that a John Doe is not an “additional” party but rather one that has been present from the beginning of the case. Although the district court did not cite § 1447(e), it followed its procedure: allowing joinder, finding it lacked subject matter jurisdiction, and then remanding.
Whether § 1441(a) continues to apply to parties substituted for John Doe defendants is an issue of first impression in our circuit. In
Casas Office Machines, Inc. v. Mita Copystar America, Inc.,
the First Circuit rejected a claim distinguishing the application of § 1441(a) and § 1447(e) to amendments.
Casas held the specific legislative directive of § 1447(e) overrode the general principle of Freeport-McMoRan because “Congress has indicated that federal diversity jurisdiction is defeated so long as, after removal, fictitious defendants are replaced with nondiverse, named defendants, regardless of whether they happen to be dispensable or indispensable to the action”. Id. at 674. Congress, in the legislative history of the Judicial Improvements and Access to Justice Act of 1988, stated that § 1447(e) “also helps to identify the consequences that may follow removal of a case with unidentified fictitious defendants”. Id. at 674 (quoting H.R. Rep. No. 889, 100th Cong., 2d Sess. 72-73 (1988), reprinted in 1988 U.S.C.C.A.N. 5982, 6033). Therefore, the First Circuit concluded: “diversity jurisdiction was lost ... when the court allowed [the plaintiff] to identify the fictitious defendants”. Id. at 675. 5
Our court cited
Casas
with approval in
Cobb v. Delta Exports, Inc.,
For the first time, we address the same issue as did the First Circuit in
Casas:
“whether [ ] substitution [for a John Doe defendant], which unquestionably destroyed complete diversity, [could] also defeat[ ] federal subject matter juris
*477
diction”.
Casas,
Because § 1441(a) applies only to John Doe defendants as such, it is irrelevant whether Doleac’s amendment consisted of an addition of a defendant or of an identification of a John Doe. And, because § 1447(e) apparently encompasses both actions under the term “join”, we will do the same for the balance of this opinion.
2.
Dr. Michalson also asserts jurisdiction was fixed at the time of removal and the district court could not consider a change in parties. Again, we disagree.
Generally, jurisdiction is determined at the time the suit is filed.... However, addition of a nondiverse party will defeat jurisdiction.... The language of 1447(c) does not mean that the court cannot consider post-removal developments .... [M]ost post-removal developments — amendment of pleadings to below jurisdictional amount or change in citizenship of a party — will not divest the court of jurisdiction but an addition of a nondiverse defendant will....
Hensgens,
B.
The far more difficult question is whether we can review the order which first allowed amendment and then remanded.
An order remanding a case to the State court from which it was removed is not reviewable on appeal or otherwise, except that an order remanding a case to the State court from which it was removed pursuant to section 1443 of this title [civil rights cases] shall be reviewable by appeal or otherwise.
28 U.S.C. § 1447(d) (emphasis added). Beginning with the exception carved out in
Thermtron Products, Inc. v. Hermansdorfer,
Our court summarized the situation as follows:
Appellate courts are precluded from reviewing remand orders issued pursuant to § 1447(c) [ (lack of subject matter jurisdiction) ], by appeal, mandamus, or otherwise. This is true even if the district court’s order was erroneous. The rationale for the rule is that allowing federal appeal of remand orders ivould delay justice in state courts. The Supreme Court in Thermtron identified *478 one narrow exception to the strict bar to appellate review of remand orders. A remand order may be reviewed where the district court “has remanded [a case] on grounds not authorized by the removal statutes.”
Angelides v. Baylor College of Medicine,
Despite the seeming clarity of this bar against review of orders remanding based on a lack of subject matter jurisdiction, the judiciary has created a doctrine that partially restrains the otherwise preclusive § 1447(d). Although courts acknowledge this bar, at times a separable and collateral order is reviewed.
See generally, e.g., First Nat’l Bank v. Genina Marine Servs., Inc.,
A number of cases dealing with the re-viewability of a remand have followed a two-step consideration: first, of § 1447(d) and
separableness;
and then, of 28 U.S.C. § 1291 and
appealability. E.g., Tillman v. CSX Transp., Inc.,
The concept of separableness originated in City of Waco v. United States Fidelity & Guaranty Company:
True, no appeal lies from the order of remand; but in logic and in fact the decree of dismissal preceded that of remand and was made by the District Court while it had control of the case. Indisputably this order is the subject of an appeal; and, if not reversed or set aside, is conclusive upon the petitioner.
Recently, in Quackenbush, the Court restated the rule of finality and the collateral order exception:
[A] decision is ordinarily considered final and appealable under § 1291 only if it ends the litigation on the merits and leaves nothing for the court to do but execute the judgment. We have ... recognized, however, a narrow class of collateral orders which do not meet this definition of finality, but which are nevertheless immediately appealable under § 1291 because they conclusively determine a disputed question that is completely separate from the merits of the action, effectively unrevieiuable on appeal from a final judgment, and too important to be denied revieiu.
Each of these inquiries — separableness and collateralness — is more fully explained below.
1.
As mentioned, the concept of separableness is rooted in
City of Waco,
in which the Court found separable a district court order dismissing a third-party cross-claim.
City of Waco,
Four cases in which our circuit expanded and applied City of Waco are particularly enlightening: Mitchell, because it is foundational and oft-cited by this circuit and others; Soley, because it explains the distinction between “substantive” and “jurisdictional” decisions; Linton, because it was apparently the first decision focusing on the “conclusiveness” aspect of City of Waco’s test; and Angelides, because it was apparently the first decision to blend the separableness and collateral order doctrine inquiries.
In
Mitchell,
the United States had filed a notice of substitution under the Westfall Act, 28 U.S.C. § 2679, and removed the action to federal court.
Mitchell,
Having held § 1447(d) did not bar review of the resubstitution order, Mitchell next considered whether § 1291 barred review. Id. at 133. It ruled the collateral order doctrine allowed review because the resubstitution effectively denied Carlson immunity. Id. Holding that the resubsti-tution was in error and that the district court simply should have dismissed the action after dismissing the United States as a defendant, our court reversed and dismissed. Id. at 135.
In
Soley,
the district court had remanded the action to state court pursuant to § 1447(c), concluding the action did not arise under ERISA and the plaintiffs claims were not within the boundaries of ERISA preemption.
Soley v. First Nat’l Bank of Commerce,
[The] rejection of an ERISA preemption defense does not “in logic and in fact” precede a remand order because, under the “well-pleaded complaint” rule, a defense does not confer removal jurisdiction. Instead, if the district court considered the preemption defense, it did so only because of an erroneous belief that the defense was relevant to the jurisdictional issue.
Id.
at 409-10;
see Copling,
In
Linton,
the defendants had removed the action on the grounds of diversity and federal question jurisdiction.
In determining whether an order is “separable” and thus can be afforded appellate review under City of Waco, we have focused on language in the Court’s opinion suggesting that an order is “separable” from an order of remand if it precedes that of remand “in logic and in fact” and is “conclusive,” i.e., it mil have the preclusive effect of being functionally unreviewable in the state court. Although the district court’s FSIA order in the instant case may have preceded the court’s order of remand “in logic and in fact,” we cannot say that it was “conclusive.” ... [T]he district court’s determination that the FSIA is inapplicable to the ... Defendants can be deemed a jurisdictional finding under the facts' of this case and, as such, can be revieiued by the state court upon remand. Under City of Waco and the jurisprudence of this circuit, the district court’s FSIA order is therefore not “conclusive” upon the Airbus Defendants so as to be “separable” and hence reviewable by this court.
Id.
at 597 (emphasis added).
Linton
appears to be the first decision in which our court expressly focused on “conclusiveness” as a distinct aspect of the separableness inquiry; but
Linton’s,
consideration of the issue was not without foundation because, for example,
In re Adams
observed that, absent appellate review, the district court’s reinstatement decision would be “functionally non-reviewable” in state court, and
Soley
said that concluding that the claims were not within ERISA preemption was jurisdictional, not substan
*482
tive, and thus renewable by the state court.
Id.
at 597 n. 26 (citing
Adams v. Sidney Schafer & Assocs. (In re Adams),
Angelides
considered reviewability following the district court’s remanding the action for lack of subject matter jurisdiction upon rejecting immunity and exhaustion defenses.
The collateral order doctrine embraces that small class [of decisions] which finally determine claims of right separable from, and collateral to, rights asserted in the action, too important to be denied review and too independent of the cause itself to require that appellate consideration be deferred until the whole case is adjudicated.
Id. at 837 (internal quotation omitted; alteration in original). -Our court then turned to a consideration of separableness, defining it as having two requirements:
First, it must precede the order of remand “in logic and in fact,” so as to be made tuhile the district court had control of the case. Second, the order sought to be separated must be “conclusive.” An order is “conclusive” if it will have the “preclusive effect of being functionally unreviewable in the state court.”
Id. at 837 (emphasis added; citations omitted). It concluded that, although the immunity and exhaustion decisions preceded the remand order in logic and in fact, they were jurisdictional decisions that could be reviewed by the state court and, therefore, were not conclusive. Id. Angelides set out a comparison of issues that were substantive and therefore conclusive and some that were jurisdictional and therefore not conclusive: In City of Waco (dismissal of cross-claim), Mitchell (resubstitution under Westfall Act), and Mauro (dismissal of federal claims), “the separable portion of the order denied a substantive right not subject to review by the state court”. Id. at 837. Our court found the immunity and exhaustion issues closer to those in Linton (immunity under FSIA), Mobil Corporation (same), and Soley (ERISA preemption), cases dealing with jurisdictional findings not binding on the state court. As noted, it therefore concluded: “The collateral order doctrine does not apply because the jurisdictional issues determined by the district court are not conclusive”. Id. at 838 (emphasis added). (An-gelides appears to be the first decision in which our court considered separableness from the remand order in conjunction with the collateral order exception, hinging the application of one on the other.) Therefore, the appeal was dismissed. Id.
While Mitchell, Soley, Linton, and An-gelides provide a background for considering the issues in this case, our most factually analogous precedent is Tillman. Tillman concerned the reviewability of allowing the addition of a party claimed to be immune. The case at hand presents a question of first impression in our circuit: whether allowing the addition of parties who destroy diversity is reviewable, notwithstanding § 1447(d). Tillman does not completely control the outcome of this case because there the district court found immunity, not lack of diversity, precluded subject matter jurisdiction. Furthermore, much of what the Tillman court stated is dicta, and some of what it said conflicts with prior precedent.
*483
In
Tillman,
plaintiffs moved to amend to name the Louisiana Department of Transportation and Development (DOTD) as a defendant.
Tillman,
“Since the joinder of the DOTD provided the judge’s ... impetus for remanding the case” and preceded the remand “both in logic and in fact”, our court ruled the issues of the amendment and the remand were separable.
Id.
at 1026 (internal quotation marks omitted) (quoting
City of Waco,
Turning to the remand, our court stated, as discussed in note 7, swpra, that the trial court was mistaken in assuming it lost jurisdiction as soon as the DOTD became a party; DOTD’s immunity did not affect diversity and DOTD could- have waived its immunity. Id. at 1027. Nevertheless, our court concluded it could not review the remand because the district court had “explicitly stated that the destruction of its jurisdietion[, a § 1447(c) basis,] served as one of the grounds for remand ... [thereby] cloak[ing] the remand' order in the § 1447(c) absolute immunity from review”. Id. at 1028. It then stated in sweeping terms:
Whether right or wrong — indeed on the assumption that its premise for remand was wholly unfounded — the trial court remanded the case because the addition of the DOTD deprived the court of jurisdiction. This case therefore lies irretrievably in state court.... [0]ur conclusion essentially renders review of whether the trial court abused its discretion by allowing the amendment a postmortem exercise....
Id. at 1028.
Our court explained that its subsequent consideration of the leave to amend was “extra postage”, implying that it was dictum, yet proceeded to conclude that the amendment-allowance was an unreviewable interlocutory order. Id. Nevertheless, the court suggested that, had the grant of leave to amend been final, it could have been reviewed. Id. at 1028-29 & 1029 n. 9. The Tillman court did not explicitly consider the collateral order exception, but alluded to it by citing Moses H. Cone Memorial Hospital. Id. at 1029 n. 9.
In its conclusion, the court observed:
Consequently, having been erroneously remanded on § 1447(c) jurisdictional grounds, this case is irretrievably beyond anything we can do about it. We cannot review it by any means. We emphasize our complete inability to do anything about the trial court’s joinder order, whether interlocutory or final, because what we cannot review we cannot by some juridical self-help get back to federal court.
While we point out that the trial court did not abuse its discretion in allowing *484 joinder, this determination only provides extra postage.. The mere presence of a § 1447(c) ground as one of the bases for the trial court’s remand has returned this case to sender, without a forwarding address for federal jurisdiction.
Id. at 1029 (emphasis added).
Three aspects of this opinion raise concern. First, its final statement that on no occasion could the court correct any error, even if the amendment-allowance was a final order, is difficult to reconcile with its earlier footnote that, had the amendment-allowance been “final”, the court could review it. It appears the Tillman court thought that, although the issues were separable, even if the amendment were reviewable, no remedy was available because it could not touch the remand.
Second, the Tillman court did not need to reach this last issue of what effect an error as to the amendment, if a final order, would have on an order to remand. Having concluded the amendment was not final, any statement as to what would have occurred if it were final is dictum.
. Third,
Tillman
suggests that, once an action has been remanded, if the resulting remand cannot be reviewed by the appellate court, a prior, underlying order of the district court cannot, in any circumstances, be reviewed. Yet, as detailed above, our cases both preceding and following
Tillman
have allowed appellate review of a separate issue, if it is reviewable under § 1291 or under an exception to § 1291-finality, such as the collateral order doctrine.
E.g., First Nat’l Bank,
Within Tillman itself is an indication that the Tillman court spoke too broadly: although it implied that an underlying order could never be reviewed, Tillman took the time to find the amendment a separable order and considered whether it was final; this review would have been superfluous if the court “e[ould] not review it by any means”.
Accordingly, to the extent that
Tillman
stands for the proposition that the joinder was separable, it is on point and controlling. Therefore, consistent with
Tillman,
the amendment-allowance in the case at hand is separable. But, as to whether that amendment falls under the collateral order exception,
Tillman
is distinguishable because it explained that DOTD’s joinder did not immediately destroy jurisdiction (on the grounds of immunity), whereas in this case, it did (on the grounds of lack of diversity).
Cf. Cobb,
2.
As mentioned, several recent cases collapse the inquiries about separableness (whether § 1447(d) bars review) and collat-eralness (whether § 1291 bars review). For example,
Angelides
stated: “As the district court’s order was not ‘conclusive,’ the collateral order doctrine does not apply and this court lacks appellate jurisdiction”.
Angelides,
To fall within the collateral order doctrine, however, an order must (among other requirements) be “separable” from the merits of the underlying action.... [I]t must precede the order of remand “in logic and in fact” ... [and] be “conclusive.”
Falcon,
The inquiries should remain distinct for several reasons: First, the definitions of separateness and of conclusiveness in the context of the reviewability of a remand order may be distinct from their definitions under the collateral order exception. For example, the “separableness” requirement of the collateral order doctrine requires that the issue be separable from the merits, not that it be separable from the order of remand. Second, the precedent most on point, Tillman, applies the two-step approach. Third, the collateral order doctrine has an existence independent of the remand question, and it arises, of course, in many situations other than when § 1447(d) bars review.
a.
Regarding separableness, under
Tillman,
allowing an amendment adding a
*486
party is a separable order. However,
Tillman
did not explicitly consider the two specific aspects of separableness considered by later decisions: whether the order preceded remand
and
whether it was conclusive.
E.g., Falcon,
For the case at hand, it is obvious that the amendment-allowance preceded the remand “in logic”. Without an identified Mississippi defendant, there would have been no basis to consider remand; the amendment “provided the ... impetus for the remand of the case”.
Tillman,
If the court looks to an issue for the purpose of determining subject matter jurisdiction, the issue is not separable because it cannot be said to have preceded the remand decision “in logic and in fact.” If, however, as in City of Waco, the issue has independent relevance in adjudging the rights of the parties (i.e., relevance beyond determining the existence of federal subject matter jurisdiction), the decision is separable and falls within the reasoning of City of Waco — even if it also happens to have an incidental effect on the court’s jurisdiction.
Powers v. Southland Corp.,
Whether the amendment was
conclusive,
— having “the preclusive effect of being functionally unreviewable in the state court”,
Angelides,
As discussed, our court has defined conclusiveness in terms of whether the order was “substantive” or “jurisdictional”: if a decision is simply jurisdictional, it is not conclusive.
E.g., Angelides,
Angelides
found helpful a comparison of issues previously found separable and those not separable. Angelides,
In contrast to these cases, the amendment at issue here simply determined the
*488
forum in which the claims would be decided and that both parties would be subject to the same action.
Cf. Washington Suburban Sanitary Comm’n v. CRS/Sirrine, Inc.,
On the other hand, the allowance of ari amendment is more separable than the issues of preemption or foreign sovereign immunity, which were found non-separable in Linton, Mobil Corporation, and Soley. In contrast to those issues, an amendment adding a party generally requires a distinct order. See Fed. R. Civ. Proc. 15(a) (allowing party to amend once as matter of course any time before responsive pleading or, if no responsive pleading permitted and action not yet placed on trial calendar, within 20 days of service; otherwise requiring leave of court or written consent of adversary). The determination of whether a party is of diverse citizenship (the specific reason for the remand at issue) is more analogous to preemption and immunity determinations than is the allowance of the amendment.
One final consideration counsels toward concluding the issues are not separable. Finding the amendment separable when remand is under § 1447(c) may produce results incongruous with remand under § 1447(e). The precedent highlighting this issue arose in other circuits and therefore is not binding on our court; however, we find it noteworthy. And, should our court ever consider this issue en banc, it may find a consideration of the relationships between §§ 1447(c) and 1447(e) helpful in seeking a unified, logical, harmonized approach to the review of remand orders that result from the addition of a non-diverse party.
In the case at hand, as an alternative to remanding under § 1447(c), the district court could have remanded under § 1447(e). It provides:
If after removal the plaintiff seeks to join additional defendants whose joinder would destroy subject matter jurisdiction, the court may deny joinder, or permit joinder and remand the action to the State court.
28 U.S.C. § 1447(e). Several courts have concluded that § 1447(d)’s bar of appellate review applies to this subsection, added in 1988, by extending the reasoning of
Thermtron,
which bars review of a remand under § 1447(c), to the whole statute, including subsequent amendments.
See In the Matter of Fl. Wire & Cable Co.,
We note that much of the language in Thermtron is cast in terms of the grounds given for remand in § 1447(c). Section 1447(e) was not added to § 1447 by Congress until 1988. We fail to see any reason to treat the grounds for remand authorized by § 1117(e) in a different way than the Supreme Court treated the grounds authorized in § 1117(c). Our opinion is reinforced by the policy behind the Congressional decision to limit review of remand orders .... It seems to us that the interest in preventing delay is the same .whether the remand is based on the *489 grounds authorized in § 1447(e) or based on the grounds authorized in § 1447(e).
Washington Suburban Sanitary Comm’n,
Of course, because the district court remanded under § 1447(c), the relationship between § 1447(d) and § 1447(e) is not before us. We note, however, that, when the question comes before this court, if our court agrees with the Fourth and Seventh Circuits that § 1447(d)’s bar extends to a joinder and remand under § 1447(e), it would not seem to make sense to hold that the joinder is separable and reviewable if the district court takes the same action but references § 1447(c) instead of subpart(e).
Because Tillman’s holding that the allowance of an amendment is separable does not clearly conflict with any prior precedent,
Tillman
controls.
E.g., Broussard v. S. Pac. Transp. Co.,
b.
Having concluded the amendment-allowance was a separable order, we must next decide whether that ruling is appealable under § 1291 or under an exception to the rule of finality. This question is considered independently because, as noted, the collateral order exception is defined by cases that cover an array of subjects, not just remand. 11
The parties discuss the applicability of
Quackenbush,
in which the district court had remanded in the light of the
Burford
abstention doctrine, but the Supreme Court held that § 1447(d) did not bar review, because the remand had not been under § 1447(c).
Quackenbush,
The allowance of the amendment easily meets the first two requirements of the collateral order doctrine. It was not “tentative, informal or incomplete”,
Cohen,
The third consideration is whether the decision is effectively unreviewable on the appeal from final judgment. If the case had not been remanded, the decision to grant or deny the amendment would not have been reviewable prior to appeal from the final judgment. As the Third Circuit pointed out in Poivers :
As a starting proposition, if the relation back amendment were not tied to a remand order, there would be little question that review would be unavailable at this juncture. First, it cannot be contended that an order permitting (or denying) joinder of a party, standing alone, is appealable under the collateral order doctrine.... The right not to be joined as a party is not significantly different from the myriad of other pretrial claims of a right to dismissal. But as is made clear in Van Cauwenberghe [v. Biard,486 U.S. 517 ,108 S.Ct. 1945 ,100 L.Ed.2d 517 (1988) ] these claims are insufficient to satisfy the third prong of the collateral order doctrine....
Yet in this case, although the amendment conclusively determined the issue of jurisdiction, which was completely separate from the merits, the precise reason it was unreviewable on appeal from a final judgment was because of § 1447(d). If the remand had not been granted, the amendment-allowance would be reviewable on appeal of the final judgment. If the remand had been granted on a ground not covered by § 1447(c), review of the remand itself would have been permissible, according to Quackenbush and the collateral order exception. In this instance, § 1447(d) itself “put the litigants effectively out of [federal] court”, yet this is the specific purpose of § 1447(d).
To clarify the issue at hand, we consider an alternative scenario. Suppose the district court had allowed the addition of GCI several days before the parties pointed out GCI was non-diverse. The addition would have immediately destroyed subject matter jurisdiction (in contrast to Tillman), but that order would not have been immediately appealable as a collateral order. Not until the district court later remanded *491 the ease for lack of subject matter jurisdiction could Dr. Michalson have plausibly asserted the issue was reviewable.
Because we do not think Congress intended the bar in § 1447(d) to turn an otherwise non-collateral, unreviewable interlocutory order into a collateral, appeal-able order, we conclude that this amendment does not meet the requirements of the third prong of the collateral order exception. To conclude otherwise would create an exception that swallows the rule, because if granting a motion to amend that destroys diversity fell within the collateral order doctrine, the very purpose of § 1447(d) would be frustrated, if not destroyed.
The only precedent dealing with changes in parties are
Tillman
and arguably
Mitchell.
In
Tillman,
the joinder did not immediately destroy jurisdiction; thus, our court ruled the joinder an unreviewable interlocutory order.
See Tillman,
As to the fourth consideration, whether the issue is too important to be denied review, we conclude that it does not counsel in favor of review. The only right at issue is Dr. Michalson’s right to a federal forum. Obviously, § 1447(d) represents Congress’ express determination that the right to a federal forum is not so significant that denial of that forum always merits review — just the opposite. Courts have consistently explained that “Congress immunized from all forms of appellate review any remand order issued on the grounds specified in § 1447(c), whether or not that order might be deemed erroneous by an appellate court”.
Thermtron,
“As its stringent requirements indicate, the collateral order doctrine is not to be applied liberally. Rather, the doctrine is extraordinarily limited in its application.”
Ozee v. Am. Council on Gift Annuities, Inc.,
C.
In challenging the constitutionality of the preclusion of appellate review, Dr. Mi-chalson asserts: § 1447(d) violates the separation of powers doctrine by usurping the power of the federal courts; and it raises due process and equal protection concerns. He grounds the latter claim in the fact that, if a district court refuses to remand a case, the party seeking remand can ultimately attain appellate review; however, if a district court grants remand, the party desiring a federal forum has no *492 right to the procedural protection of appellate review.
1.
As a preliminary matter, Doleac maintains we should decline to consider this issue because it is raised for the first time on appeal. Dr. Michalson replies that he did not have standing in district court to raise the constitutional challenge to § 1447(d) because, prior to remand, he had not yet sustained injury. Although we generally do not entertain issues not raised in, or decided by, the district court, we will do so “in extraordinary instances when such consideration is required to avoid a miscarriage of justice”.
Bayou Liberty Ass’n, Inc. v. United States Army Corps of Eng’rs,
2.
The roots of § 1447(d)’s preclusion of appellate review are in the Act of Mar. 3, 1887, 24 Stat. 552.
Thermtron,
Dr. Michalson’s claims are without merit. It is axiomatic that Congress has plenary authority to regulate the jurisdiction of the federal courts.
Kline v. Burke Constr. Co.,
3.
Furthermore, the Fifth Amendment confers no due process right to appellate review in a federal forum. The remand order affects only the procedural question as to the forum in which Dr. Michalson will seek to defend his interests, and “[n]o one has a vested right in any given mode of procedure”.
Crane v. Hahlo,
4.
Finally, because litigants who oppose remand are not a suspect class and § 1447(d) deprives them of no fundamental right, the statute need only be based in “a rational relationship between the disparity of treatment and some legitimate governmental purpose”.
Heller v. Doe,
III.
The district court’s application of the Hensgens factors to allow the amendment joining GCI as a defendant was a separable order but did not come within the collateral order exception. Therefore, § 1447(d) bars our review of the remand and also of the amendment itself. Such preclusion, based upon the dictates of § 1447(d), is not unconstitutional. Because we lack jurisdiction to consider the appeal, it is
DISMISSED.
Notes
. Dr. Michalson requests either reversal through direct appeal or issuance of a writ of mandamus; however, because he never filed a mandamus petition, we need not reach that issue. Furthermore,
"Thermtron
[Products,
Inc. v. Hermansdorfer,
. Dr. Michalson filed a timely notice of appeal of “the Memorandum Opinion and Order granting Plaintiff’s Motion to Amend Complaint” and moved for a stay of proceedings pending appeal, which was denied. The parties dispute whether the notice limits the appeal to simply whether the allowance of the amendment was proper or whether the appeal extends to the propriety of remand as well. Doleac contends that, because Dr. Mi-chalson failed to appeal the remand, he cannot challenge the constitutionality of denying review of it. Because the remand was encompassed in the memorandum and order referenced in the notice of appeal, Michalson has appealed both issues. See Fed. R.App. Proc. 3(c)(1) (notice of appeal must, inter alia, designate judgment,, order, or part thereof being appealed).
. Not only do all the John Does in the initial complaint reappear in the amended complaint, two more are named; the group grew from “A-D” to "A-F”.
. In addition, the legislative history of § 1441 demonstrates Congress intended § 1441 to apply only until the John Doe party was identified:
If the plaintiff seeks to substitute a diversity-destroying defendant after removal, the court can act as appropriate under proposed § 1447(d) [enacted as § 1447(e)] to deny joinder, or to permit joinder and remand to the State court.
H.R. Rep. No. 889, at 112 (emphasis added), reprinted in 1988 U.S.C.C.A.N. at 6032. Likewise, the official commentary to the revisions of § 1441 supports this reading. It explains that, although § 1441(a) allows the defendant to remove by ignoring the citizenship of the unknown defendant for the time being,
the problem may return later, when, in the course of the proceedings in federal court, the unknown defendant becomes known, and it also becomes known that his citizenship defeats diversity. The result may be a remand of the case for want of federal jurisdiction, unless the plaintiff considers dropping the spoilsport from the case.
Commentary on 1988 and 1990 Revisions of Section 1441, 28 U.S.C.A. § 1441 (emphasis added).
.
See, e.g., Aguamar
S.A. v.
Del Monte Fresh Produce N.A., 179
F.3d 1279, 1287 (11th Cir.1999) (must address two questions: whether § 1447(d) bars consideration of appeal and whether dismissal of claims was "final order” within § 1291);
Powers
v.
Southland Corp.,
.
Tillman
explained: “The DOTD’s temporary presence as a party would not have tainted or obliterated a classic case of diversity. Consequently, the grant of leave to amend was an unreviewable interlocutory order”.
Tillman,
. The Third Circuit agrees that Tillman's conclusion conflicts with our earlier analysis in Mitchell:
[Tillman says:] "... We emphasize our complete inability to do anything about the trial court’s joinder order, whether interlocutory or final, because what we cannot review we cannot by some juridical self-help get back to federal court.” ... CT]he statement was pure dicta since the [court had previously] conclufded] that [the] decision allowing joinder was interlocutory.... [W]e disagree with the possible implication of the quoted material — that once an entire case has been remanded and the underlying remand cannot be reviewed, a prior order of the district court cannot, in any circumstances, be reviewed by the federal court of appeals. We believe, to the contrary, that if there is independent appellate jurisdiction over an issue under the governing federal statutes, the fact that the district court may have remanded the case cannot deprive the court of appeals of the jurisdiction granted to it by Congress.... This result is supported by cases such as Mitchell v. Carlson.
Powers, 4 F.3d at 229.
. Dr. Michalson asserts the decision to take away the federal forum was conclusive. But, in considering separableness, we are considering whether the amendment was conclusive, not whether the remand was.
. The Eleventh Circuit avoided the seeming incongruity between the two definitions of "substantive” by explaining:
Unlike the "matter of substantive law exception” to section 1447(d), which allows courts of appeals to review only those remand orders that are based on substantive determinations of law, the Waco doctrine allows us to review a district court's jurisdictional determinations. This distinction exists because the "matter of substantive law exception” and the Waco doctrine apply to different types of orders. The “matter of substantive law exception” applies to the review of a remand order itself, that determines the substantive issues of the case in a way that is conclusive because it is unreviewable by the state court. The reason that the "matter of substantive law exception” does not apply to a remand based on a district court’s jurisdictional findings is that these findings have no conclusive effect upon the state court action.... When a district court enters an order to do something other than remand (such as dismissal of a claim or a party), and this order changes the contours of the state court action after remand, however, it does not matter whether the issue of law the court decided when it entered the order was jurisdictional or substantive; either way, the parties’ rights have been altered in a manner that the state court cannot revisit.
Aguamar,
.
See,
e.g.,
Mitchell v. Forsyth,
. The Seventh Circuit in
Amoco
criticized our ruling in
McDermott,
No less than an order staying a federal court action pending adjudication of the dispute in state court, it put's the litigants in this case effectively out of court. Indeed, the remand order is clearly more final than a stay order in this sense. When a district court remands a case to a state court, the district court disassociates itself from the *490 case entirely, retaining nothing of the matter on the federal court’s docket.
Quackenbush,
. Contrary to Dr. Michalson’s suggestion,
Honda Motor Co., Ltd. v. Oberg,
. Doleac's request, pursuant to Federal Rule of Appellate Procedure 38, that Dr. Michalson be sanctioned for raising frivolous issues on appeal is without merit and, accordingly, is DENIED.
