OPINION
ROTH, Circuit Judge.
Moses Villot pled guilty to a general murder charge in exchange for an agreement by the Commonwealth of Pennsylvania not to seek the death penalty. At the sentencing hearing in the Court of Com
mon Pleas, Villot was found to have committed first degree murder and he was sentenced to life in prison. The present appeal is from the denial of Villot’s § 2254 petition for writ of habeas corpus, based on three claims that his plea counsel provided ineffective assistance. Villot had unsuccessfully urged one of these claims on direct appeal and all three of them in his state petition for collateral relief. The District Court held that the two claims not presented until Villot’s state collateral proceeding were procedurally defaulted because Villot failed to satisfy 42 Pa. Cons. Stat. § 9543(a)(2)(iii), which requires petitioners seeking collateral relief from guilty pleas to plead and prove their innocence. The District Court also held that the claim Villot presented on direct appeal was procedurally defaulted because Villot had failed to seek review in the Pennsylvania Supreme Court and would now be time-barred from doing so.
A motions panel of this court granted a certifícate of appealability asking counsel to specifically address whether the innocence provision in § 9543(a)(2)(iii) is an independent and adequate state procedural ground. We now hold that this provision is a substantive requirement rather than a procedural rule and cannot, therefore, give rise to a procedural default of Villot’s federal claims. Under federal law, proof of innocence is not a prerequisite to relief from a guilty plea. The Commonwealth of Pennsylvania has, however, tacked on an innocence provision as a substantive element necessary to prove in order to obtain relief from a guilty plea. But a state cannot add a substantive element to the proof necessary to obtain federal relief. A habeas petitioner’s inability to meet more restrictive state standards for relief cannot result in a forfeiture of his federal constitutional claims. Accordingly, we conclude that these two collateral relief claims were not procedurally defaulted.
We further hold that Villot’s third ineffective assistance claim is not defaulted. Although Villot did not fully exhaust this claim on direct appeal, he did fully exhaust all three claims by petitioning the Pennsylvania Supreme Court for review of the Superior Court’s denial of collateral relief. Thus, Villot has invoked “one complete round” of the normal state appellate review process with respect to each claim.
O’Sullivan v. Boerckel,
526 U.S. 838, 845, 119 S.Ct. 1728, 144 L.Ed.2d 1 (1999). Accordingly, we will reverse the judgment of District Court and remand this case for consideration of the merits of all of Villot’s claims.
I. Facts and Procedural History
In October 1990, Moses Villot pled guilty in the Pennsylvania Court of Common Pleas to the murder of his brother-in-law. Following a degree of guilt hearing, Villot was found guilty of first-degree murder and sentenced to a mandatory term of
life imprisonment.
Shortly thereafter, Villot, represented by new counsel, filed a timely motion to withdraw his guilty plea, principally arguing that his plea counsel provided ineffective assistance. Following evidentiary hearings in October 1991, the Court of Common Pleas denied Villot’s motion. Villot appealed to the Superior Court, arguing,
inter alia,
that his plea counsel provided ineffective assistance at the degree of guilt hearing due to a conflict of interest. Villot claimed that two of his plea counsel’s former clients were the murder victim and the only eye-witness called by the prosecution at the degree of guilt hearing. The Superior Court denied the appeal and Villot did not seek review in the Pennsylvania Supreme Court.
In January 1997, Villot filed a
pro se
petition for collateral relief under Pennsylvania’s PosMJonviction Relief Act (PCRA), 42 Pa. Cons.Stat. § 9541
et seq,
claiming that his plea counsel’s ineffective assistance “undermined the truth-determining process” per § 9543(a)(2)(ii) and “unlawfully induced” his guilty plea per § 9543(a)(2)(iii).
Counsel was appointed to represent Villot, but filed a no-merit letter per
Commonwealth v. Finley,
379 Pa.Super. 390,
550 A.2d
213 (1988). The Court of Common Pleas dismissed Villot’s petition without opinion and allowed appointed counsel to withdraw.
The Superior Court granted Villot the right to appeal this decision
nunc pro tunc.
Villot raised three ineffective assistance claims on appeal. First, he claimed his plea counsel coerced him into pleading guilty. Second, he claimed that his plea counsel failed to adequately interview him prior to advising him to plead guilty. Finally, he reiterated the conflict of interest claim described above. In July 1999, the Superior Court affirmed the dismissal of his PCRA petition. The court noted that, pursuant to a 1995 amendment, the PCRA now requires a petitioner seeking relief from his guilty plea to show not only that the plea was “unlawfully induced” but also that he is innocent. 42 Pa. Const. Stat. § 9543(a)(2)(iii). The court held that Vil-lot’s claims were “not cognizable” under this section because Villot had failed to assert his innocence. The court further noted that Villot admitted facts consistent with his guilty plea in his brief supporting his PCRA appeal and held that “[o]bviously, Appellant is not innocent.”
In November 1999, the Pennsylvania Supreme Court denied Villot’s petition for allowance of appeal.
In October 2000, Villot filed a 28 U.S.C. § 2254 petition in the Eastern District of Pennsylvania, alleging the same three ineffective assistance claims he had raised in
his PCRA appeal. The Magistrate Judge held that Villot’s first two claims were procedurally defaulted based on the Superior Court’s holding that Villot’s claims were “not cognizable.” The Magistrate Judge held, however, that Villot’s third claim was insulated from the Superior Court’s holding because that claim was properly exhausted on direct appeal. The Magistrate Judge noted that Villot failed to petition the Pennsylvania Supreme Court following the Superior Court’s denial of his direct appeal, but held that this was no longer a required step in the exhaustion process for habeas cases arising in Pennsylvania. The Magistrate Judge cited
In re: Exhaustion of State Remedies in Criminal and Rost-Conviction Relief Cases,
No. 218 Judicial Administration Docket No. 1 (Pa. May 9, 2000) (Order 218) of the Pennsylvania Supreme Court, which provides that “in all appeals from criminal convictions ... a litigant shall not be required to petition for rehearing or allowance of appeal following an adverse decision by the Superior Court in order to be deemed to have exhausted all available state remedies respecting a claim of error.”
See Wenger v. Frank,
266 F.3d 218, 224-25 (3d Cir.2001) (citing Order 218). Accordingly, the Magistrate Judge considered Villot’s conflict of interest claim- on the merits, and ultimately recommended that the claim be denied.
The District Judge adopted the Magistrate Judge’s report and recommendation with respect to the first two claims but held that the conflict of interest claim was also procedurally defaulted. The District Judge held that Order 218, issued in May 2000, does not apply retroactively and therefore did not apply to Villot’s direct appeal, which was denied by the Superior Court in May 1993.
See Wenger,
266 F.3d at 226 (holding that “Order 218 does not apply in cases in which the time to petition for review by the state supreme court expired prior to the date of the order”). The District Judge concluded, therefore, that Villot’s conflict of interest claim was procedurally defaulted because the time to petition the Pennsylvania Supreme Court had long since expired. In February 2001, the District Court dismissed the petition without reaching the merits. -
A motions panel of this court issued a certificate of appealability per 28 U.S.C. § 2253(c) with respect to Villot’s first two ineffective assistance claims but denied the certificate with respect to the conflict of interest claim, holding that this claim was clearly defaulted. The certificate specifically sought briefing on whether the Superior Court’s holding that Villot did not satisfy § 9543(a)(2)(iii)’s innocence requirement constitutes “an ‘independent and adequate’ state law ground [precluding] review of [Villot’s] federal claims” under the procedural default rule. As explained below, our consideration of Villot’s first two claims requires us also to reconsider the motions panel’s earlier conclusion that his conflict of interest claim was ■ defaulted.
II. Jurisdiction and Standard of Review
The District Court exercised jurisdiction over Villot’s habeas petition under 28 U.S.C. §§ 2241 and 2254. We have jurisdiction to review the District Court’s order denying Villot’s petition under 28 U.S.C. § 1291. We exercise plenary review over the District Court’s legal conclusions in a habeas proceeding,
Caswell v. Ryan,
953 F.2d 853, 857 (3d Cir.1992), including its resolution of legal questions arising from application of the procedural default doctrine.
Hull v. Kyler,
190 F.3d 88, 97 (3d Cir.1999).
III. Discussion
In our order granting Villot’s request for a certificate of appealability we asked
the parties to consider whether the Superi- or Court’s holding that Villot did not satisfy § 9543(a)(2)(iii)’s innocence requirement constitutes “an ‘independent and adequate’ state law ground [precluding] review of [Villot’s] federal claims.” We no longer need to address this issue, however, because we now hold that the innocence provision is substantive rather than procedural. By definition, the procedural default rule only applies to state procedural rules. We further hold that Villot’s non-compliance with certain state procedural rules, not discussed by the District Court, also does not support a finding of procedural default because the Superior Court did not rely on these grounds in concluding that Villot’s claims were not cognizable under the PCRA. Finally, we hold that Villot properly exhausted all of his ineffective assistance claims in the PCRA proceeding, and therefore the District Court must consider the merits of all of them on remand.
A. Because § 9543(a)(2)(iii)’s innocence requirement is substantive rather than procedural, it cannot give rise to procedural default of Villot’s federal claims.
Under the procedural default rule, “an adequate and independent finding of procedural default will bar federal habeas review of the federal claim, unless the habeas petitioner can show cause for the default and prejudice attributable thereto, or demonstrate that failure to consider the federal claim will result in a fundamental miscarriage of justice.”
Harris v. Reed,
489 U.S. 255, 262, 109 S.Ct. 1038, 103 L.Ed.2d 308 (1989) (internal citations omitted). Villot does not claim that the “cause and prejudice” or “fundamental miscarriage of justice” exceptions excuse his failure to allege and prove his innocence in his PCRA proceeding as required by § 9543(a)(2)(iii). Further, Villot does not claim, and there is no basis to speculate, that the Superior Court’s holding was interwoven with or based on federal law; it is clear that the state court ruling was “independent.” Rather, the parties focus almost exclusively on whether § 9543(a)(2)(iii)’s innocence clause is “adequate” to support the Superior Court’s judgment.
See Szuchon v. Lehman,
273 F.3d 299, 325 (3d Cir.2001) (stating that a procedural rule is adequate only if it is “firmly established, readily ascertainable, and regularly followed”) (citing
Ford v. Georgia,
498 U.S. 411, 423-24, 111 S.Ct. 850, 112 L.Ed.2d 935 (1991)). We need not reach this issue, however, because we now hold that the innocence clause is a substantive requirement, not a procedural rule, and therefore cannot give rise to a procedural default.
Before 1995, § 9543(a)(2)(iii) required a PCRA petitioner challenging the validity of his guilty plea to “plead and prove” that his plea was “unlawfully induced where the circumstances make it likely that the inducement caused him to plead guilty.”
See Commonwealth v. Banks,
540 Pa. 143, 656 A.2d 467, 470 (1995) (quoting former provision). Following the 1995 amendment to this provision, the petitioner must now also “plead and prove” that circumstances make it likely that “the petitioner is innocent.” 42 Pa. Cons.Stat. § 9543(a) (2) (iii);
Commonwealth v. Michael,
562 Pa. 356, 755 A.2d 1274, 1277 (2000) (citing current provision). This clause plainly adds a substantive element to Pennsylvania’s test for obtaining collateral relief from guilty pleas. Substantive law “creates, defines, and regulates rights and duties of parties.”
Black’s Law Dictionary
1429 (6th ed.1990). In contrast, procedural law “prescribes method[s] of enforcing rights or obtaining redress for their invasion.”
Id.
at 1203, 755 A.2d 1274. The Pennsylvania legislature amended the definition of a PCRA petitioner’s right to
collateral relief by adding a new element, the innocence requirement.
Granted, given the structure of the statute defining eligibility for PCRA relief, any substantive addition creates a corresponding procedural addition. The first sentence of the act requires petitioners to “plead” as well as “prove” certain facts, including, of course, the claimed error.
See
42 Pa. Cons.Stat. § 9543(a). At oral argument the state relied on this general pleading requirement to argue that the innocence provision is procedural rather than substantive. Specifically, the state noted that the Superior Court deemed Vil-lot’s PCRA appeal “not cognizable” because he failed to
allege
his innocence. First, this argument conflates the pleading requirement in the first sentence of § 9543 with the innocence requirement at subsection (a)(2)(iii); the fact that the former rule is procedural does not change the substantive nature of the latter requirement. Second, the state implies that Villot could have satisfied the innocence requirement simply by asserting his innocence with no intention of actually demonstrating his lack of guilt. We reject this bizarre position, which ignores the plain language of the statute and would reduce the innocence requirement to a meaningless formality. Finally, the state ignores the remainder of the Superior Court’s opinion, in which the court noted certain admissions in Villot’s brief and held that Villot was “[ojbviously ... not innocent.” Thus, the Superior Court reached the merits of Vil-lot’s claim by holding that he could not satisfy the innocence requirement.
Furthermore, the innocence requirement makes Pennsylvania’s test for evaluating ineffective assistance claims related to guilty pleas more restrictive than the federal test.
A § 2254 petitioner who claims that his counsel’s ineffective assistance caused him 'to enter an involuntary or unknowing plea may obtain collateral relief regardless of whether he asserts or proves his innocence. To prevail, the petitioner must establish “that (i) his or her counsel’s representation fell below an objective standard of reasonableness demanded of attorneys in criminal cases; and. (ii) there is a reasonable probability that, but for counsel’s errors, he or she would have proceeded to trial instead of pleading guilty.”
United States v. Nahodil,
36 F.3d 323, 326 (3d Cir.1994) (citing
Hill v. Lockhart,
474 U.S. 52, 59, 106 S.Ct. 366, 88 L.Ed.2d 203 (1985)). In
Nahodil, we
indicated that a petitioner’s past assertions of innocence .may help substantiate his claim that he would have proceeded to trial but for his counsel’s errors, 36 F.3d at
326-27, but we have never suggested that a failure to assert or prove innocence precludes a finding of prejudice. Thus, by requiring a PCRA petitioner to “plead and prove” his innocence to obtain collateral relief from his guilty plea, subsection 9543(a)(2)(iii) tacks on an additional substantive element on top of those required by federal law.
The procedural default rule is an application of the independent and adequate state ground doctrine.
See Coleman v. Thompson,
501 U.S. 722, 729-30, 111 S.Ct. 2546, 115 L.Ed.2d 640 (1991). Under this doctrine, federal courts “will not review a question of federal law decided by a state court if the decision of that court rests on a state law ground that is independent of the federal question and adequate to support the judgment.” Id. at 729, 111 S.Ct. 2546 (citations omitted). While the independent and adequate state ground doctrine applies whether the state law ground is substantive or procedural,
id.,
the procedural default rule applies, by definition, only to procedural rules. “The [procedural default] doctrine applies to bar federal habeas when a state court declined to address a prisoner’s federal claims because the prisoner had failed to meet a state
procedural
requirement. In these cases, that state judgment rests on independent and adequate
procedural
grounds.”
Id.
(emphases added). This distinction between procedural and substantive rules is perfectly consistent with the procedural default rule’s rationale, which is that state courts should not be deprived of an opportunity to correct their own errors by the habeas petitioner’s failure to abide by the state’s reasonable procedural rules:
Just as in those cases in which a state prisoner fails to exhaust state remedies, a habeas petitioner who has failed to meet the State’s
procedural
requirements for presenting his federal claims has deprived the state courts of an opportunity to address those claims in the first instance.
Id.
at 731-32, 111 S.Ct. 2546 (emphasis added);
see also Rose v. Lundy,
455 U.S. 509, 518-19, 102 S.Ct. 1198, 71 L.Ed.2d 379 (1982) (articulating similar rationale). However, when a state tacks on substantive additions to federal claims, it is the state itself that has forfeited its opportunity to consider the federal claims of the class of petitioners who cannot satisfy the additional state-created substantive requirement. The considerations of comity and federalism underlying the procedural default rule have no application in such cases.
See Coleman,
501 U.S. at 730, 111 S.Ct. 2546 (explaining that application of independent and adequate state ground rule in habeas is grounded in comity and federalism concerns, not jurisdictional limits).
In fact, an interpretation of the procedural default rule that extended to state substantive restrictions on federal claims would violate the supremacy clause.
See
U.S. Const, art. VI. The states have no obligation to provide collateral relief to convicted criminals at all,
see Pennsylvania v. Finley,
481 U.S. 551, 557, 107 S.Ct. 1990, 95 L.Ed.2d 539 (1987) (citation omitted), and the relief they elect to provide need not be coextensive with that provided by federal statutory or constitutional law. Thus, the Pennsylvania legislature was free to set a higher bar for collateral relief from guilty pleas than federal law provides.
A holding that the procedural default rule applies in this case, however, would effectively impose Pennsylvania’s
extra-constitutional restrictions on collateral relief on federal habeas proceedings despite 28 U.S.C. § 2254(a), which authorizes relief whenever a prisoner is held in custody “in violation of the Constitution or laws or treaties of the United States.”
Accordingly, we do not need to determine whether the Superior Court’s application of § 9543(a)(2)(iii)’s innocence requirement satisfies the “independent and adequate” state ground test because, even assuming it does, it cannot foreclose federal habeas review of Villot’s ineffective assistance claims.
B. Villot’s habeas petition is not procedurally defaulted because of his non-compliance with § 9543(a)(3).
Section 9543(a)(2)(iii) provided a substantive basis for the Superior Court’s holding that Villot’s claims were “not cognizable” under the PCRA. However, it appears that the Superior Court could have also denied relief on procedural grounds. Specifically, the court could have held that Villot failed to comply with 42 Pa. Const. Stat. § 9543(a)(3), which provides that a PCRA petitioner must plead and prove “[t]hat the allegation of error has not been previously litigated or waived.”
Although the state does not rely on § 9543(a)(3) directly, in both its brief and at oral argument it placed great emphasis on its contention that Villot waived two of his ineffective assistance claims by failing to raise them prior to his PCRA proceeding. We treat this as an argument that Villot’s claims should be considered procedurally defaulted under § 9543(a)(3), but we reject this argument because the Superior .Court did not rely on § 9543(a)(3) in denying Villot’s PCRA appeal.
First, it seems clear that the Superior Court could have held that some or all of Villot’s PCRA claims were either previously litigated or waived. There is no doubt that Villot’s conflict of interest claim was previously litigated in both Villot’s motion to withdraw his guilty plea and on direct appeal. Next, Villot’s claim that his plea counsel failed to adequately interview him and investigate his case could have been deemed waived by the Superior Court because it was not raised before the trial court or on direct appeal.
Finally, with respect to Villot’s claim that his plea counsel coerced him into pleading guilty, the
state argues that this is just a variation on his conflict of interest claim.
If the state is correct, this claim could also have been deemed “previously-litigated.” If the state is incorrect and this claim is considered distinct, the Superior Court might have held that this claim was waived because Villot did not raise it in his motion to withdraw his guilty plea or on direct appeal.
Thus, if the Superior Court had barred review of some or all of Villot’s claims on the basis of § 9543(a)(3) rather than, or in addition to, its ruling based on § 9543(a)(2)(iii), it could be argued that the procedurally barred claims were defaulted for purposes of federal habeas review.
However, “a federal claimant’s procedural default precludes federal habeas review ...
only
if the last state court rendering a judgment in the case rests its judgment on the procedural default.”
Harris v. Reed,
489 U.S. 255, 262, 109 S.Ct. 1038, 103 L.Ed.2d 308 (1989) (emphasis added). If the state' court does not actually enforce the procedural rule in question, the “federal court implies no disrespect for the state by entertaining the claim.”
County Court of Ulster County, N.Y. v. Allen,
442 U.S. 140, 154, 99 S.Ct. 2213, 60 L.Ed.2d 777 (1979);
see also Smith v. Freeman,
892 F.2d 331, 336 (3d Cir.1989) (relying on
Harris
and
Ulster
to hold that a claim was not procedurally barred under a certain state procedural rule where the Pennsylvania courts did not rely on this rule and addressed the merits of the petition instead). The Superior Court’s opinion rejecting Villot’s PCRA appeal rests exclusively on subsection (a)(2)(iii), and does not mention § 9543(a)(3) or any other procedural basis for its ruling.
Under the presumption established in
Ylst v. Nunnemaker,
501 U.S. 797, 803, 111 S.Ct. 2590, 115 L.Ed.2d 706 (1991), the Pennsylvania Supreme Court’s refusal to review the Superior Court’s order is presumed to rest on the same ground. Comity does not require, nor would it justify, any endeavor by this Court to substitute an unmentioned procedural ground in place of subsection (a)(2)(iii) in order to hold Villot’s claims procedurally defaulted in federal court.
C. Villot’s conflict of interest claim was not defaulted because of the manner in which it was concluded by the state in the PCRA proceeding.
In its order granting Villot’s certifí-cate of appealability with respect to two of his ineffective assistance claims, the motions panel denied the certificate with respect to his ineffective assistance claim based on an alleged conflict of interest. The motions panel agreed with the District Court that this claim was procedurally defaulted because Villot failed to fully exhaust it on direct appeal by seeking review in the Pennsylvania Supreme Court and would now be time-barred from doing so. That ruling, however, failed to account for the fact that Villot presented this same claim, along with his other two ineffective assistance claims, to Pennsylvania’s highest court following the Superior Court’s denial of his PCRA appeal. We now hold that all three of Villot’s ineffective assistance claims were properly exhausted during the PCRA proceedings.
Before a federal court may grant a § 2254 habeas petition, the state prisoner must exhaust his available state court remedies. 28 U.S.C. § 2254(b)(1);
O’Sullivan,
526 U.S. at 842, 119 S.Ct. 1728. “The exhaustion doctrine is designed to give the state courts a full and fair opportunity to resolve federal constitutional claims before those claims are presented to the federal courts.”
Id.
at 845, 119 S.Ct. 1728. The prisoner typically exhausts his federal claims by fairly presenting each claim at each stage of the state’s established appellate review process.
Id.
However, when the state refuses to consider the merits of the prisoner’s claims because the petitioner has failed to comply with the state’s procedural requirements, his claim is nonetheless technically exhausted' because “there is an absence of available State corrective process,” 28 U.S.C. § 2254(b)(l)(B)(I), despite the fact that the petitioner has “deprived the state courts of an opportunity to address [the federal] claims in the first instance.”
Coleman,
501 U.S. at 732, 111 S.Ct. 2546. Thus, the procedural default rule avoids frustration of the purpose behind the exhaustion requirement by precluding federal review of procedurally barred claims unless the petitioner can establish “cause and prejudice”
or a “fundamental miscarriage of justice” to excuse the procedural default.
Id.; Whitney v. Horn,
280 F.3d 240, 250 (3d Cir.2002) (citation omitted).
The District Court correctly ruled that Villot did not fully exhaust his conflict of interest claim on direct appeal because he did not petition the Pennsylvania Supreme Court for review of the Superior Court’s denial of his appeal.
However, Villot presented both this claim and his other two claims to the Pennsylvania Supreme Court following the Superior Court’s denial of his PCRA appeal. A prisoner is only required to invoke
“one
complete round” of the state’s established appellate process to satisfy the exhaustion requirement,
O’Sullivan,
526 U.S. at 845, 119 S.Ct. 1728 (emphasis added), and Villot did so during his PCRA proceedings.
If § 9543(a)(2)(iii)’s innocence provision were procedural rather than substantive, then the District Court’s ruling would have been correct. As explained above, a procedurally barred claim is
technically
exhausted but not
properly
exhausted because the state courts are not given a fair opportunity to address the federal claim on the merits.
See O’Sullivan,
526 U.S. at 848, 119 S.Ct. 1728. If § 9543(a)(2)(iii)’s innocence provision were a procedural bar then Villot would have lost his only opportunity to properly exhaust his federal claims when he failed to petition the state’s highest court following his direct appeal. Because we have held that this provision is substantive, however,
see supra
Part IV. A., and because the Superior Court did not deny Villot’s PCRA appeal on any procedural ground,
see supra
Part IV.B., we hold that Villot properly exhausted his ineffective assistance claims by presenting them to the state’s highest court during his PCRA proceedings.
IV. Conclusion
For the reasons stated above, we will reverse the District Court’s dismissal of Villot’s habeas petition and remand this case for consideration of the merits of all three of Villot’s claims.