The plaintiffs represent a putative class of children whose parents claim that the Commissioner of Social Security (the “Commissioner”) has implemented a policy (the “Policy”) that excludes some children from eligibility for Supplemental Security Income Benefits (“SSI Benefits”) in a manner that violates the Social Security Act (the “Act”) and the Commissioner’s own regulations. Pursuant to those regulations, childhood disability is determined by evaluating applicants within six domains of functioning, such as the child’s ability to acquire and use information. Children are eligible for benefits if they have at least two “marked” limitations on their functioning within these domains or at least one “extreme” limitation. Under the Policy, the combined effect of a child’s multiple mental or physical impairments may be deemed a marked or extreme limitation if the limitation occurs within a single domain. But the Policy prohibits the Social Security Administration (the “SSA”) from considering the combined effects of limitations in different domains. Thus, the
The plaintiffs maintain that the Policy violates the Act’s command that the SSA consider the combined effects of a child’s impairments “throughout the disability determination process.” 42 U.S.C. § 1882c(a)(3)(G). They also claim that the Policy violates a nearly identical provision in the Commissioner’s regulations. The district court disagreed and granted summary judgment to the Commissioner. We AFFIRM.
BACKGROUND
This is the second time we have addressed the plaintiffs’ claims. We provide an abbreviated version of the extensive background, including the relevant statutory and regulatory history, recounted in our prior decision,
Encarnacion ex rel. George v. Barnhart,
The Act provides for SSI Benefits to disabled children as well as adults. See Pub.L. No. 92-603, § 301, 86 Stat. 1329, 1471, 1473 (1972). The Commissioner has authority to promulgate regulations to determine eligibility for SSI Benefits. See 42 U.S.C. § 405(a). In 1984, Congress added to the Act a provision that applies to all disability determinations (whether for children or adults), which instructs:
In determining whether an individual’s physical or mental impairment or impairments are of a sufficient medical severity that such impairment or impairments could be the basis of eligibility [for SSI Benefits], the [Commissioner] shall consider the combined effect of all of the individual’s impairments without regard to whether any such impairment, if considered separately, would be of such severity. If the [Commissioner] does find a medically severe combination of impairments, the combined impact of the impairments shall be considered throughout the disability determination process.
Social Security Disability Benefits Reform Act of 1984, Pub.L. No. 98-460, § 4, 98 Stat. 1794, 1800 (codified at 42 U.S.C. § 1382c(a)(3)(G)). In 1985, the SSA adopted a regulation that repeats this statute nearly verbatim. See Disability Insurance and Supplemental Security Income; Determining Disability and Blindness; Multiple Impairments, 50 Fed.Reg. 8,726, 8,729 (Mar. 5, 1985)(eodified at 20 C.F.R. § 416.923). These two provisions are central to the plaintiffs’ claims in this case.
The Commissioner’s regulations for determining a child’s eligibility for SSI Benefits have undergone many amendments. One important change came as a result of the Supreme Court’s decision in
Sullivan v. Zebley,
In response to
Sullivan,
the SSA amended the regulations to require an “individualized functional assessment” (“IFA”) for each child.
See
Supplemental Security Income; Determining Disability for a Child Under Age 18, 56 Fed.Reg. 5,534 (Feb. 1, 1991) (codified at 20 C.F.R. § 416.924). As a result of the new regula
In 1996, the regime for children’s SSI Benefits underwent more changes. Congress amended the Act to define a “disabled” child as one who “has a medically determinable physical or mental impairment, which results in marked or severe functional limitations, and which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months.” Personal Responsibility and Work Opportunity Reconciliation Act of 1996, Pub.L. No. 104-193, § 211, 110 Stat. 2105, 2188-89 (codified at 42 U.S.C. § 1382c (a)(3)(C)(i)). Congress made clear that children should not qualify for benefits under the new definition unless they have at least two marked limitations, thus making eligibility more restrictive.
See Encarnacion I,
The Commissioner was charged with promulgating “such regulations as may be necessary to implement” the amendment,
id.
§ 215,
For a child’s impairment to functionally equal a listed impairment, the impairment must “result in ‘marked’ limitations in two domains of functioning or an ‘extreme’ limitation in one domain.” 20 C.F.R. § 416.926a(a). The domains that the regulations establish to determine whether impairments result in marked or extreme limitations are: (1) acquiring and using information, (2) attending and completing tasks, (3) interacting and relating with others, (4) moving about and manipulating objects, (5) caring for oneself, and (6) health and physical well-being.
Id.
§ 416.926a(b)(1). The SSA must determine whether an impairment or combination of impairments causes a “marked” limitation on a child’s functioning in at least two of these domains, or an “extreme” limitation in at least one domain. A “marked” limitation is “ ‘more than moderate’ but ‘less than extreme’ ” and “interferes seriously with” a child’s “ability to independently initiate, sustain, or complete activities.”
Id.
§ 416.926a(e)(2)(i). An “extreme” limitation is “ ‘more than marked’ ” and “interferes very seriously with” a child’s “ability to independently initiate, sustain, or complete activities.”
Id.
§ 416. 926a (e)(3). The regulations recognize that an impairment or combination of
The Commissioner points to two documents to support the existence of the Policy: an SSA training manual, see SSA, Office of Disability, Publ’n No. 64-075, Childhood Disability Training: Student Manual, Tab F at 15 (1997), and commentary in the notice of the agency’s final rulemaking implementing Congress’s 1996 amendments, see Supplemental Security Income; Determining Disability for a Child Under Age 18, 65 Fed.Reg. 54,747, 54,763 (Sept. 11, 2000) (codified at 20 C.F.R. pts. 404, 416). The manual provides that “[mjoderate limitations cannot be ‘added up’ to equal a ‘marked’ limitation.” In the rulemaking notice, the Commissioner explained that permitting a finding of disability based on less-than-marked limitations in multiple domains would improperly reinstate the IFA process, under which a child with three moderate limitations could be considered disabled. See id.
In September 2000, the plaintiffs sued the Commissioner in the U.S. District Court for the Southern District of New York (Swain, J.), claiming that they were denied benefits because of the Policy and that the Policy violated the Act because it prevented the agency from considering the combined effect of impairments throughout the disability-determination process. The district court upheld the Policy, and we affirmed, reading the SSA regulations to provide sufficient flexibility to “look comprehensively at the combined effects of [a claimant’s] impairments.”
Encarnacion
I,
The plaintiffs filed this case in September 2003, alleging that the Policy prevents the SSA from adding together less-than-marked limitations from separate domains and prohibits the SSA from adjusting the level of limitation in one domain to reflect the impact of limitations in other domains. In support of their claims, the plaintiffs submitted an expert declaration from Kevin P. Dwyer, a school psychologist. Dwyer opined that the Policy resulted in an “irrational and unscientific” methodology for determining disability and denied benefits to children who were as, or more, disabled than those who had two marked limitations and qualified for benefits.
The district court granted summary judgment to the Commissioner. The court concluded that
Encarnacion I
did not require the Commissioner to engage in cross-domain combination of less-than-
The plaintiffs now appeal.
DISCUSSION
We review de novo the district court’s grant of summary judgment.
Guilbert v.
Gardner,
I. Effect of Encarnación I
The plaintiffs contend that Encarnacion I dictates a result in their favor. We disagree.
In
Encarnacion I,
the Court gave three reasons for rejecting the plaintiffs’ challenge. First, the SSA considers impairments in each domain that they affect.
The Court also noted that “the flexibility to account for cumulative effects ... is likely essential to a permissible implementation of the Act” because, under
Sullivan v. Zebley,
Judge Raggi wrote a separate concurrence to emphasize her view that the Court’s opinion permitted, but did not require, the Commissioner to adjust the limitation level within one domain based on limitations in other domains. See id. at 92 (Raggi, J., concurring). Judge Raggi noted that “the SSA does not presently engage in across-domain analysis in determining childhood disability,” but concluded that the Commissioner’s method of evaluating the combined effects of impairments within each domain they affect was a reasonable implementation of the statute. See id. at 92-93. With regard to the majority’s statement that the flexibility it described was “likely essential to a permissible implementation of the Act,” Judge Raggi understood the majority to “refer[ ] both to the flexibility available in the present SSA practice ... as well as to the flexibility afforded by the alternative across-domain adjustment process.” Id. (internal quotation marks omitted).
We believe that
Encarnacion I
did not resolve the precise issue before us. Rather, the Court suggested what the plaintiffs assumed did not exist: the possibility of cross-domain adjustment as part of the agency’s “comprehensive” look at each ap
Like Judge Raggi, we do not read the majority’s statement about sufficient flexibility to require the SSA to adjust the limitation level in one domain based on limitations in other domains. See id. at 92. Instead, we understand the Court to have meant that the Commissioner’s interpretation could not be so inflexible as to assign zero weight to an impairment in the disability-determination process. 1 We know that the Court found sufficient flexibility for the three reasons noted above. We simply do not know, because the Court was not required to decide, whether the Court would have reached the same result absent the third of those three reasons— ie., that the agency could adjust limitation levels within a particular domain based on a comprehensive look at the claimant. We therefore must decide that issue here.
II. Deference Due the Policy
The plaintiffs allege that the Policy conflicts with both the Act and the regulations. Before addressing the substance of their challenge, we must decide the level of deference due the Commissioner.
Whether a court defers to an agency’s interpretation “depends in significant part upon the interpretive method used and the nature of the question at issue.”
Barnhart v. Walton,
The plaintiffs argue that the Policy is not entitled to
Chevron
deference because it is not found in the regulations themselves, but is only expressed, if at all, in informal sources like the training manual.
2
III. Application of Skidmore
The weight we give an interpretation under
Skidmore
depends “upon the thoroughness evident in its consideration, the validity of its reasoning, its consistency with earlier and later pronouncements, and all those factors which give it power to persuade.”
Skidmore,
It is undisputed that the “disability determination process” is the sequential process that the Commissioner has established under his broad statutory authority.
See, e.g.,
42 U.S.C. § 405(a) (authorizing the Commissioner to promulgate regulations to determine eligibility for benefits); Pub.L. No. 104-193, § 215,
The Commissioner’s interpretation — focusing on combined impairments within each domain — is easily understood and applied in a reasonably transparent manner. In contrast, we have difficulty understanding how the plaintiffs’ interpretation of the statute would function in practice.
Cf. Fed. Express Corp.,
Because the plaintiffs do not challenge the Commissioner’s use of the domains to determine functional equivalence, any interpretation they offer must account for the domains. While the plaintiffs’ briefs and expert declaration are replete with condemnations of the Policy, they offer nothing in the way of an alternative system that would satisfy the statute and be efficiently administered, using the domains. For example, the plaintiffs’ expert opines that the Commissioner’s Policy fails to consider, in the ultimate benefits determination, certain impairments that do not lead to marked limitations in any particular domain. He explains that “no competent clinician would fail to include [those impairments] as a highly relevant variable in the equation.” How the SSA would consider impairments as a “relevant variable” outside the domains, in a system overseen by administrative law judges, not clinicians, is unexplained. The plaintiffs’ briefs are similarly unenlightening. We are left with vague arguments that the Commissioner could have designed a better regulatory system to effectuate Congress’s general marching orders. But “[w]here ambiguities in statutory analysis and application are presented, the agency may choose among reasonable alternatives.” Id. at 1158.
Apart from the text, congressional purpose, and practical considerations, other factors point in favor of the Commissioner’s interpretation. The SSA has substantial expertise and is charged with administering a complex statute. The agency’s considerable efforts to refine the disability-determination process for children and align it with congressional purposes has led to “a body of experience and informed judgment to which courts and litigants may properly resort for guidance.”
Id.
at 1156 (internal quotation marks omitted). And the plaintiffs do not contend that the Commissioner has waffled in his interpretation of the statute or regulations; rather, his interpretation has been consistent since
Finally, the plaintiffs inordinately rely on the Dwyer declaration to argue that the Policy “violates accepted clinical standards for the evaluation of children and leads to irrational results.” We lack the authority and are ill-equipped, in contrast to the Commissioner, to decide the best method to determine childhood disability. Nor does the plaintiffs’ expert declaration (unaccompanied by any evidence as to actual children who are adversely affected by the Policy or a concrete alternative to the Commissioner’s interpretation) overcome the Commissioner’s reasonable, consistent application of the statute. We will not reject the agency’s otherwise persuasive interpretation on the say-so of a single expert armed only with hypothetieals.
We therefore conclude that the Commissioner’s interpretation of the Act and implementing regulations, embodied in the Policy, is entitled to deference under Skidmore.
CONCLUSION
For the foregoing reasons, we AFFIRM the district court’s judgment.
Notes
. To the extent that the Court in Encarnacion I meant to suggest that the Act required the agency to make cross-domain adjustments, any such comments are dicta and do not free us of the obligation to decide the issue ourselves.
. The plaintiffs contend that the training manual and commentary to the 2000 rulemaking contain only "sparse and inconclusive references” to the Policy, and that the Commissioner has fully articulated the Policy only in this litigation.
. This case is unlike
Sullivan v. Zebley,
where the Supreme Court concluded that the childhood-disability regulations did not allow for consideration of all impairments throughout the process.
See
