Opinion by Judge RAWLINSON; Dissent by Judge FARRIS.

This case presents the issue of when one is a prevailing party under the Individuals with Disabilities Education Act (IDEA), 20 *1232 U.S.C. § 1400 et seq. (2000). Because the hearing officer determined that student A.O. was deprived of a free and appropriate public education (FAPE), and that A.O. was eligible for special education, A.O. was a prevailing party entitled to an award of attorneys’ fees. We reverse the district court’s ruling to the contrary and remand for an award of attorneys’ fees.

I. Background

When A.O. was a student in the Los Gatos-Saratoga Joint Union High School District, her mother filed a petition for a due process hearing pursuant to the IDEA and corresponding provisions of California law. After a due process proceeding, the hearing officer concluded that the school district had denied A.O. her legal right to a FAPE by failing to conduct a timely assessment to determine A.O.’s special education needs and by inappropriately finding A.O. ineligible for special education. However, because the school had started an assessment process during the course of the proceedings, the hearing officer limited his finding of eligibility to the time period of January 24-April 26, 2004 (the latter date being the last day of the hearing). The hearing officer declared A.O. to be the prevailing party to the extent of his ruling.

A.O.’s mother sought attorneys’ fees in federal district court on behalf of A.O. pursuant to the IDEA, § 1415(i)(3)(B). The school district moved to dismiss the complaint pursuant to Fed.R.Civ.P. 12(b)(6). Essentially, the school district contended, as it does on appeal, that A.O. was not a prevailing party because the hearing officer’s decision was insufficient to materially alter the legal relationship between the parties. Alternatively, the school district contended that any alteration of the relationship was de minimis. The district court agreed with the school district’s position and dismissed the complaint for attorneys’ fees without leave to amend.

II. Standard of review

Although a district court’s denial of attorneys’ fees is typically reviewed for abuse of discretion, “any elements of legal analysis and statutory interpretation underlying the district court’s attorneys’ fees decision are reviewed de novo, and factual findings underlying the district court’s decision are reviewed for clear error.” T.N. v. Seattle School District, No. 1, 458 F.3d 983, 985 (9th Cir.2006) (citations omitted). As the district court dismissed for failure to state a claim pursuant to Fed.R.Civ.P. 12(b)(6), the question before this panel is a legal one that should be reviewed de novo. See San Pedro Hotel Co. Inc. v. City of Los Angeles, 159 F.3d 470, 477 (9th Cir.1998). Moreover, the district court determined that A.O. “cannot establish that she obtained any affirmative relief or a judgment that materially altered the legal re lationship of the parties.” The Eighth Circuit has appropriately described this determination as a test of “unmistakably legal terms” requiring de novo review. Jenkins v. State of Missouri, 127 F.3d 709, 713-14 (8th Cir.1997). This precise issue has not been resolved in this Circuit. 1 However, we agree with the reasoning of the Eighth Circuit in Jenkins . The question of whether a judgment has mate *1233 rially altered the legal relationship of the parties is a legal one. Essentially, the determination represents part of the “legal analysis and statutory interpretation underlying the district court’s attorneys’ fees decision,” T.N., 458 F.3d at 985 , and, as such, the appropriate standard of review is de novo. See id.

III. Analysis

The district court correctly determined that for A.O. to be entitled to attorneys’ fees as a prevailing party under the IDEA, she must demonstrate that the hearing officer’s order created “a material alteration of the legal relationship of the parties.” See Shapiro v. Paradise Valley Unified School Dist., 374 F.3d 857 , 864 (9th Cir.2004). The district court also properly noted that this means the hearing officer’s order must give A.O. the ability to “require! ] the [school district] to do something [it] otherwise would not have to do.” Fischer v. SJB-P.D. Inc., 214 F.3d 1115, 1118 (9th Cir.2000). Additionally, the district court appropriately recognized that “a plaintiff is not the prevailing party if his or her success is purely technical or de min-imis.” Shapiro, 374 F.3d at 865 (citation omitted). 2 Nevertheless, the district court erred in finding that the hearing officer’s eligibility determination did not “require! ] the [school district] to do something [it] otherwise would not have to do.” Fischer, 214 F.3d at 1118 .

As demonstrated by the plain meaning of the statute and its accompanying regulations, an eligibility determination is the most important aspect of the IDEA. It is the lynchpin from which all other rights under the statute flow. See 34 C.F.R. § 300.535 (b) (“If a determination is made that a child has a disability and needs special education and related services, an IEP [individualized education program] must be developed for the child in accordance with §§ 300.340-300.350.”); see also, 34 C.F.R. §§ 300.340-300.350 (providing detailed requirements for the development of eligible children’s IEPs); 34 C.F.R. § 300.300 (FAPE requirement triggered by being a “child! ] with a disability.”).

It is true that the hearing officer purportedly limited his determination of eligibility to a specific time period preceding the issuance of his opinion. As a result of that determination, the district court concluded that there was no prospective relief afforded, and that nothing in the hearing officer’s opinion could be judicially enforced. This finding was legally incorrect. The hearing officer only expressed this limitation because the school district was in the process of conducting an assessment. In essence, the school anticipated that the hearing officer would find that A.O. was a student with a disability and was, therefore, already conducting a reassessment to determine if her eligibility was continuing and, if so, what services she would need. Had the school not been engaged in the reassessment process, the hearing officer would not have limited his eligibility finding to a past period. Once the school properly completed the reassessment, it then was required to develop an appropriate IEP or dis qualify A.O. if the reassessment demonstrated that she was no longer eligible for special education services. See 20 U.S.C. § 1414 (c)(5). The reassessment itself constituted an obligation the school would not have had if there had been no finding that A.O. was a student with a disability. An understanding of this nuance is crucial to the outcome of this case.

*1234 Once the hearing officer deemed A.O. eligible for special education services as a “child with a disability,” the school district could not thereafter have determined that she was not so eligible without conducting a reevaluation. See id. (“A local educational agency shall evaluate a child with a disability in accordance with this section before determining that the child is no longer a child with a disability.” (emphasis added)).

The hearing officer’s statement, therefore, that he was making no determination about future eligibility does not mean that there were no significant aspects of the order that were judicially enforceable, thus altering the legal relationship of the parties. For example, on the date the hearing officer’s decision was issued, because the hearing officer had found that A.O. was previously eligible for special education services, she automatically remained eligible. Id. Accordingly, the school district was required to develop an IEP for her, absent conducting a new evaluation. Id.; see also 34 C.F.R. § 300.535 (b).

In other words, prior to the hearing officer’s decision, the school district would have been free to discontinue the assessment process it began during the course of the due process hearing, and could have refused to provide special education services to A.O. The hearing officer’s eligibility determination fundamentally limited the school district’s options. Because A.O. was officially classified as a “child with a disability” as a result of the hearing officer’s decision, the school at that point, and prospectively, had only two choices: 1) provide A.O. services in accordance with an appropriately developed IEP, 34 C.F.R. § 300.535 (b); or 2) properly complete the assessment in order to find her ineligible. 20 U.S.C. § 1414 (c)(5). These actions are ones that, absent the hearing officer’s decision, the school district “otherwise would not have to do.” Fischer, 214 F.3d at 1118 . Thus, the district court erred in its determination that the hearing officer’s order did not sufficiently alter the nature of the legal relationship between the parties to render A.O. a prevailing party.

A.O.’s victory was not de minimis or technical. As previously outlined, the eligibility determination is the lynchpin of all rights under the IDEA. In addition, the hearing officer specifically determined that as a result of the school district’s failure to find A.O. eligible, she was denied a FARE. In Parle, we recognized the importance of that denial:

Park, 464 F.3d at 1036 (emphasis added). 3

The hearing officer’s decision materially altered the legal relationship between the parties in a manner that cannot be considered de minimis, rendering A.O. a prevailing party entitled to the award of attorneys’ fees. Accordingly, we reverse the judgment of the district court and remand *1235 with instructions to calculate and award attorneys’ fees.

REVERSED and REMANDED.

. In Park v. Anaheim Union High School Dist., 464 F.3d 1025, 1034 (9th Cir.2006), we applied the abuse of discretion standard without discussion. Id. at 1031, 1034 . However, we are not bound by a holding "made casually and without analysis, ... uttered in passing without due consideration of the alternatives, or where it is merely a prelude to another legal issue that commands the panel’s full attention ...” United States v. Johnson, 256 F.3d 895, 915 (9th Cir.2001); see also Pakootas v. Teck Cominco Metals, Ltd., 452 F.3d 1066, 1082 (9th Cir.2006).

. The district court also correctly noted that the hearing officer’s designation of prevailing party status cannot be dispositive in itself, given Cal. Educ.Code § 56507(b)(l)’s directive that attorneys' fees may be awarded only pursuant to agreement by the parties, or by a court of competent jurisdiction.

. This determination alone might well be dis-positive. However, in Park , the hearing officer ordered that additional goals be added to the IEP, and that compensatory education services be provided to the child's teachers for the child’s benefit. 464 F.3d at 1030-31 . Nevertheless, given the statement that the determination regarding a denial of FAPE alone would be sufficient to confer prevailing party status, id. at 1036 , Park lends strong support to A.O.'s position.