ORDER AND OPINION
ORDER
James Edward King’s petition for rehearing and A. LaMarque’s petition for rehearing are granted in part, without further oral argument. The Opinion and separate concurring Opinion, filed on July 26, 2006 and reported at
The parties’ petitions for rehearing en banc are denied as moot. Subsequent petitions for panel rehearing and/or petitions for rehearing en banc may be filed with respect to the new Opinion in accordance with the requirements of Fed. R.App. P. 40 and 35.
*965 OPINION
James Edward King (“King”) appeals the denial of his habeas corpus petition, raising four issues, only one of which was listed within the Certificate of Appealability (“COA”) at the time of argument. Three of the issues pertain to the California Supreme Court’s dismissal of an ineffective assistаnce claim because it determined that King’s habeas petition was filed after substantial delay. King asserts that the rule is inadequate and that his case fits the exceptions that allow federal courts to review claims that arе otherwise procedurally barred. His fourth claim asserts the district court erred in finding that he was not prejudiced by his trial counsel’s failure to review a videotape of the victim and failure to object to a reference to his parole officer within that tape. 1
FACTS AND PROCEDURAL HISTORY
A jury convicted King of violating California Penal Code §§ 288 and 269 by committing a lewd act and three aggravated assaults — rape, oral copulation, and digital penetration — on a child. King pursued direct appeal and state habeas corpus petitions, both of which were unsuccessful.
King’s first federal habeas petition contained exhausted and unexhausted claims. After King’s attorney failed to respond to the government’s motion to dismiss, the district court dismissed the petition. King submitted a pro se motion under Rule 60(b) of Civil Procedure, and the district court set aside the judgment of dismissal, finding that King’s counsel had been grossly negligent. The district court stayed its proceеdings while King pursued his unexhausted claims in state court. The California Supreme Court summarily denied King’s subsequent habeas petition, citing two cases barring review of habeas petitions filed after substantial delay:
In re Clark, 5
Cal.4th 760,
STANDARD OF REVIEW
We review a district court’s decision to grant or deny a habeas corpus petition de novo.
Clark v. Murphy,
DISCUSSION
I
Federal courts will not generally review a question of federal law decided by a statе court if its decision rests on a state law ground that is independent of the federal question and adequate to support the judgment.
See Coleman v. Thompson,
To be firmly established or consistently applied, a rule must be clear and certain.
See Melendez v. Pliler,
288 F.3d
*966
1120, 1124 (9th Cir.2002) (citing
Morales v. Calderon,
California’s timeliness rule bars ha-beas petitions that are filed after “substantial delay.” A habeas petitioner in California must justify any “significant” or “substantial” delay in seeking habeas corpus relief.
Clark,
California’s timeliness rule aрplies to both capital and noncapital cases. In capital cases, California’s Supreme Court Policies Regarding Cases Arising from Judgments of Death (“Policies”) create a presumption of timeliness if a petition “is filed within 90 days of the final due date for the filing of an appellant’s reply brief.”
Clark, 21
Cal.Rptr.2d 509,
In
Morales,
we indicated that California’s timeliness rule was too uncertain,
pre-Clark,
to be a procedural bar for capital cases.
Bennett
specifies the burden-shifting process involved in determining whether a procedural rule is adequate.
The government explicitly pleaded “the existence of an independent and adequate state procedural ground,” the California rule against petitions filed after substantial delay, as an affirmative defense in district court. The burden, therefore, shifted to King.
Bennett,
In response, King asserts that the California Supreme Court’s dismissal of his case demonstrates thаt it inconsistently applies the timeliness rule because he properly justified his delay. As the district court noted, this is not proof of inconsistent application, but simply rehashes the merits of his arguments before the California Supremе Court.
King fails to explicitly raise the issue of whether the timeliness rule is too uncertain to be well established. The question then arises: Is simply contesting the adequacy of a state rule sufficient to meet the petitioner’s burden under Bennett if we have previously found the rule to be too ambiguous to bar federal review during the applicable time period? We hold it is.
Bennett
requires the petitioner to “place [the procedural default] defense in issue” to shift the burden baсk to the government.
In
Ortiz v. Stewart,
This holding is necessary to maintain the primary principle we announced in Bennett: the government bears the ultimate burden of establishing the adequacy of a rule. This burden should еxist whether or not the petitioner identifies the correct basis upon which to challenge the *968 adequacy of the rule. If we held otherwise, the government could avoid its burden under Bennett, and illogical results would occur. Here, for example, we would bar King’s claim based on a procedural rule already found to be inadequate. In essence, we would be holding that the same rule is adequate in some cases and inadequate in others. This defies common sеnse. A procedural rule is either adequate or inadequate during a given time period; its adequacy does not depend upon the facts of a petitioner’s case.
By challenging the adequacy of a state procedural rule we have found to be insufficiently clear in Morales, King has met his Bennett burden. On remand, the government must demonstrate that California’s “substantial delay” rule has become sufficiently clear and consistently applied to justify barring federal review of King’s claim. 3
II
King asserts that even if California’s timeliness rule is an independent and adequate ground, his claim is still reviewable because he meets the “cause and prejudice” exception for procedural defaults. Having decided to remand this case to reconsider whether King has procedurally defaulted his claim, we need not reach this issue.
CONCLUSION
We vacate the district court’s judgment with regard to the adequacy of the California timeliness rule and remand for further proceedings consistent with this opinion.
VACATED IN PART and REMANDED.
Notes
. Applying the relevant standards we grant King's motion to expand the COA with regard to his claim addressing the adequacy of California’s "substantial delay” rule, but deny his motion with regard to his other uncertified issuеs.
Slack v. McDaniel,
. Bennett did not foreclose alternative methods of "plac[ing][the] defense in issue,” stating only that the petitioner “may satisfy this burden by asserting specific factual allegations....” Id. (emphasis added). Bennett, of course, did not resolve all of the potential issues involved with applying the "new standard” because it specified the burden-shifting process but did not apply it. Id.
.
Morales
specifically reserved the issue of whether
Clark
successfully cleared up the uncertainties regarding capital cases.
Id..; see also Bennett,
