Opinion for the Court filed by Circuit Judge ROGERS.
The Secretary of the Interior and others (“the Secretary”) appeal the preliminary injunction of March 15, 2004, which superseded and replaced an injunction of July 28, 2003, and required disconnection of substantially all of the Department of the Interior’s computer systems from the Internet.
Cobell v. Norton,
We hold, contrary to the Secretary’s contention, that issuance of the March 15, 2004 injunction is not precluded by Pub. L. 108-108, 117 Stat. 1241, 1263 (2003), which applies only to “historical accounting activities.” As the district court noted, “Interi- or’s present obligation to administer the trust presents sufficient grounds for finding that Plaintiffs will be irreparably injured.”
Cobell XI,
I.
The underlying litigation concerns individual Indian money accounts (“IIM”), which collectively form a trust established by the General Allotment Act in 1887 for the benefit of American Indians.
1
The trust corpus cоnsists of the revenues derived from land that was carved out of preexisting Indian reservations under the 1887 Act.
See generally Cobell VI,
This court affirmed, although holding in
Cobell VI
that “the actual legal breach [by the Secretary] is the failure to provide an accounting, not failure to take the discrete individual steps that would facilitate an accounting.”
[t]he level of oversight proposed by the district court may well be in excess of that countenanced in the typical delay case ... so too is the magnitude of government malfeasance and potential prejudice to the plaintiffs’ class....
... [Accordingly,] the [district] court should not abdicate its responsibility to ensure that its instructions are followed. This would seem particularly appropriate where, as here, there is a record of agency recalcitrance and resistance to the fulfillment of its legal duties.
Id.
at 1109 (citing
In re Center for Auto Safety,
On remand, as relevant here, the district court, in light of the Special Master’s recommendation regarding inadequate IT security of IITD, granted the plаintiffs’
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motion for a temporary restraining order on December 5, 2001, requiring Interior “immediately [to] disconnect from the Internet” its IT systems housing or accessing IITD.
See Cobell v. Norton,
On June 26, 2003, the plaintiffs filed a motion for a temporary restraining order and a preliminary injunction to mandate the Secretary to disconnect from the Internet all Interior cоmputers and IT systems that house or access IITD until the Special Master certified that all the data was properly secured. Id. at 119. Following a hearing, the district court entered a temporary restraining order, modifying the order in light of Interior’s suggestions. Interior, while protesting entry of any order, stated that it was willing to work things out with the Special Master. Id. at 120. Soon thereafter, however, Interior requested that “ ‘Special Master Balaran ... be disqualified from acting in any capacity in this case.’ ” Id. at 124. Following a hearing on July 28, 2003, the district court еntered a preliminary injunction, and stayed the Consent Order. Id. at 133. The July 28, 2003 injunction called for disconnection of all Interior computers from the Internet, except: (1) “those essential for protection against fires or other threats to life or property;” and (2) those that [Interior] certified “in accordance with Rule 11 of the Federal Rules of Civil Procedure,” were secure from unauthorized Internet access or did not house or access IITD. Id. at 135-36. In light of Interior’s objection to any further involvement by the Special Master in determining the security of Interior’s IT systems, the district court decided to make the determinations itself. Id. at 133. The Secretary appealed.
In the interim, on August 11, 2003, the Secretary filed certifications on the state of IT security in response to the July 28, 2003 injunction. On March 15, 2004, the district court entered a preliminary injunction that “superseded and replaced” the July 28, 2003 injunction.
Cobell v. Norton,
II.
The Secretary challenges the March 15, 2004 injunction as lacking any legal foundation or factual predicate. According to the Secretаry, the injunction lacks a legal basis in the 1994 Act, is contrary to the mandate in
Cobell VI,
and violates settled limitations on judicial review. Not only did the district court fail to amend its 1999 order in
Cobell V
in compliance with
Cobell VI,
The court reviews the grant of a preliminary injunction for abuse оf discretion.
Doran v. Salem Inn, Inc.,
As a threshold matter, the Secretary’s contention that Pub. L. No. 108-108 removes any legal basis for the March 15, 2004 injunction is unpersuasive. This statute provides that nothing in any law “shall be construed or applied to require ... Interior to commence or continue historical accounting activities.... ”
The Secretary’s other challenges to the district court’s legal authority to enter the March 15, 2004 injunction are also unpersuasive. In contending that the district court ignored the narrow mandate of
Cobell VI
by undertaking to oversee Interior’s computer security, the Secretary relies on this court’s re-characterization of the legal breach of fiduciary duty in
Cobell VI
as a failure to provide an accounting, not the separate steps directed by the district court toward facilitating an accounting, and on this court’s expectation that the district court would “be mindful of the limits of its jurisdiction.”
Id.
at 1106, 1110. But the Secretary ignores relevant discussion in
Cobell VI.
The court made plain in
Cobell VI
that it was “premature ... to rule on the precise scope of the district court’s planned proceedings” in addressing the difficult task of extracting an accounting from an agency with an intransigent past.
Id.
at 1110. The court likewisе made plain that maintaining adequate computer systems, along with staff and document retention policies, is critical to the completion of an adequate accounting.
Id.
at 1106. While the court also stated that Interior “should be afforded sufficient discretion in determining the precise route [it] take[s], so long as this threshold [of producing an adequate accounting] is met,”
id.,
the court did not limit the district court’s authority to exercise its discretion as a court of equity in fashioning a remedy to right a century-old wrong or to enforce a consent decree,
see Frew v. Hawkins,
Contrary to the Secretary’s view, “[w]hile the government’s obligations are rooted in and outlined by the relevant statutes and treaties, they are largely defined in traditional equitable terms,”
Cobell VI,
It is only by mischaracterizing the March 15, 2004 injunction that the Secretary can now contend that the district court dictated Interior’s actions for improving IT system security, and therefore violated the separation of powers. The plain language of the injunction as well as the district court’s memorandum opinion requires the Secretary to develop the IT security programs. The district court did not order the type of wholesale programmatic changes rejected in
Lujan v. National Wildlife Federation,
III.
We do not reach the merits of the Secretary’s challenges to the factual predicate for the March 15, 2004 injunction because related procedural and evidentiary issues require that we vacate the injunction.
A.
A preliminary injunction is an extraordinary remedy that should be granted only when the party seeking the relief, by a clear showing, carries the burden of persuasion.
Mazurek v. Armstrong,
The district court, in entering the July 28, 2003, preliminary injunction found, after a hearing, that:
[the] plaintiffs have not demonstrated to the- satisfaction of the Court that the reconnected systems are not presently secured from unauthorized access. The failure to present such evidence certainly wеighs against directing that the reconnected' systems be immediately disconnected. On the other hand, the Interior defendants have failed to demonstrate to this Court that the reconnected systems are, in fact, secure from such unauthorized access. Without any *259 evidence that the systems are secure, it would be an act of folly for this Court simply to permit them to remain connected.
Cobell IX,
Prevailing on the merits of the liability claim of a breach of fiduciary duty by the Secretary in failing to accоunt for IITD funds did not relieve the plaintiffs of their burden as the moving party to demonstrate the necessity of the IT disconnection injunction to safeguard against imminent and irreparable injury to their interests. The district court in
Cobell V
contemplated that the post-liability phase of the underlying litigation would, in part, “involve the government bringing forward its proof on IIM trust balances and then plaintiffs making exceptions to that proof.”
The evidence before the district court consisted of the Special Master’s reports documenting vulnerabilities of Interior’s IT systems through February 5, 2002, including exposure of IITD “to uninvited review and manipulation,”
Cobell XI,
B.
The Secretаry’s certifications on IT systems security consisted of twelve declarations and supporting materials. The district court declined to consider them because the declarants stated that the information provided was “true and correct to the best of my knowledge, information and belief,” which the district court held contravened Local Rule 5.1(h) 2 and 28 U.S.C. § 1746. 3 Id. at 85. The court addressed the substance of the submissions only by stating the information “is often confusing and contradictory,” id., pointing to a single internal inconsistency, id. at 85-86. The reasons given by the district court do not support its disregard of the сertifications.
Local Rule 5.1(h) and 28 U.S.C. § 1746 contemplate as adequate certifications that are “substantially” in the form of the language of their provisions. A declaration or certification that includes the disclaimer “to the best of [the declarant’s] knowledge, information or belief’ is sufficient under the local rule, the statute.
See United States v. Roberts,
Furthermore, the district court seemed to be insisting on compliance with Rule 56(e) of the Federal Rules of Civil Procedure, which expressly requires affidavits to be based on personal knowledge. But that rule applies to a motion for summary judgment. Here the district court treated the matter as a preliminary injunction proceeding. Nothing in the rules specifies what sort of affidavits are required at the
*261
preliminary injunction stage. This court has never decided that the Rule 56(e) standard should apply to such proceedings and thеre is good reason to believe it should not. Summary judgment substitutes for trial and it therefore makes sense to require evidentiary submissions to consist only of admissible evidence. A preliminary injunction is just that — preliminary. It does not substitute for a trial, and its usual office is to hold the parties in place until a trial can take place; the proceedings are streamlined, intentionally, because the fuse is often so short.
See
12 James Wm. MooRE, et al., Moore’s Federal PraCtice § 65.23 (2004); 11A CHARLES Allen Wright, et al., Federal PraCtioe AND Procedure § 2949 (2d ed. 1995);
see also Sierra Club Lone Star Chapter v. FDIC,
While internal incоnsistencies could provide a basis for discrediting the certifications, the district court cited only one. Id. at 85-86. A statement accompanying the declaration of the Deputy Director for the Bureau of Land Management indicated that the Automated Fluid Mineral Support System had been reconnected, while an attached table indicated the system had “no internet connectivity.” Id. at 86. The inconsistency could affect whether the court would give credence to that particular certification, but it did not suppоrt disregarding the others, which were prepared and sworn by different people with regard to different bureaus. To the extent the district court also observed that the Secretary was telling a different story about its computer security to other branches of the government, see id. at 89-95, the only issue before the district court was the security of IT systems housing and accessing IITD, and the external reports referenced by the court did not address that precise issue. Consequently, the district court also erred by disregarding Interior’s certifications as substаntively defective. Id. at 83.
C.
A preliminary injunction may be granted based on less formal procedures and on less extensive evidence than in a trial on the merits,
Natural Res. Def. Council v. Pena,
The district court could not resolve the state of Interior’s IT systems security without conducting a hearing on the evidence in dispute. In opposition to the plaintiffs’ motion for injunctive relief mandating disconnection of Interior’s IT systems from the Internet, the Secretary described various measures taken and underway by Interior to secure IT systems, and disputed that such drastic relief was necessary. Almost nine months had passed since the hearing for the July 28, *262 2003 injunction. Under the circumstances, the court abused its discretion by not holding an evidentiary hearing before issuing the March 15, 2004 injunction.
Accordingly, we vacate the March 15, 2004 injunction and remand the ease to the district court.
Notes
.
Cobell v. Babbitt,
. Local Rule 5.1(h) of the United States District Court for the District of Columbia provides in pertinent part:
Whenever any matter is required or permitted by rule to be supported by the sworn written statement of a person ... the matter may ... be supported by the unsworn declarаtion, certificate, verification, or statement, in writing of such person which is subscribed as true [and correct] under penalty of perjury....
. 28 U.S.C. § 1746 provides in pertinent part: Wherever, under any law of the United States or under any rule, regulation, order, or requirement made pursuant to law, any matter is required or permitted to be ... proved by the sworn declaration, verification, certificate, ... in writing of the person making the same ... such matter may ... be supported, evidenced, established, or proved by the unsworn declaration, certificate, verification, or statement, in writing of such person which is subscribed by him, as true [and correct] under penalty of perjury....
