If a disability claimant shows that he can no longer perform any of his past jobs, he is disabled unless the administrative law judge (ALJ) finds that he can do some other kind of work. In this case, the ALJ found that claimant retained the residual functional capacity (RFC) only for sedentary work that would allow him to alternate sitting and standing and that was, at most, semi-skilled. In response to the ALJ’s hypothetical question including these restrictions, a vocational expert (VE) summarily identified four jobs claimant os
Disability Claim
Robert Haddock was born on January 6, 1942. He completed ten years of school. His past jobs included lead carpenter, school bus driver, school janitor, and lift-dump operator. He filed his claim for disability benefits on January 19, 1995, alleging that he became disabled in November 1992 due to hip problems, shortness of breath related to heart and lung problems, lack of strength, and residual chest pains resulting from a heart attack in May 1992.
The ALJ denied Mr. Haddock’s claim at step five of the evaluation sequence.
See generally Williams v. Bowen,
We have jurisdiction under 42 U.S.C. § 405(g) and 28 U.S.C. § 1291. We review the agency’s decision on the whole record to determine only whether the factual findings are supported by substantial evidence and the correct legal standards were applied.
See Goatcher v. United States Dep’t of Health & Human Servs.,
Issue on Appeal
Mrs. Haddock argues on appeal that, of the four jobs identified by the VE, only payroll clerk is described in the Dictionary of Occupational Titles as a sedentary, semi-skilled job to match the exertional and skill restrictions the ALJ found Mr. Haddock to have.
See
Dictionary of Occupational Titles 215.382-014. She alleges that parts clerk jobs are described in the Dictionary as either light and skilled, or heavy and semi-skilled.
See id.
222.367-042, 249.367-058, 279.357-062. She asserts that inventory clerk and materials lister
Discussion
It is axiomatic that all of the ALJ’s required findings must be supported by substantial evidence.
See
42 U.S.C. § 405(g). Substantial evidence is “ ‘such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.’ ”
Richardson v. Perales,
At step four, the ALJ must “ ‘assess the nature and extent of [the claimant’s] physical limitations and then determine [the claimant’s] residual functional capacity for work activity on a regular and continuing basis.’ ”
Winfrey v. Chater,
When a claimant’s exertional level, age, education, and skill level (i.e., work experience) fit precisely within the criteria of a grid rule, an ALJ may base a determination of nondisability conclusively on the grids.
See Trimiar v. Sullivan,
What the agency’s regulations and rulings require an ALJ to do, or even allow an ALJ to do, to produce substantial vocational evidence at step five is not clear. 20 C.F.R. § 404.1566(d)(1) states that “[w]hen [the agency] determines that unskilled, sedentary, light, and medium jobs exist in the national economy ..., [the agency] will take administrative notice of reliable job information available from various governmental and other publications!, including the] Dictionary of Occupational Titles.” This subsection suggests that an ALJ, since he or she has the burden at step five, must correlate a VE’s testimony in an individual case with vocational information provided in the Dictionary of Occupational Titles or other reliable publications. We have previously indicated such an understanding of § 404.1566(d)(1) in dicta in
Campbell v. Bowen,
Subsection 404.1566(e), however, allows an ALJ to use a vocational expert “[i]f the issue in determining whether [the claimant is] disabled is whether [the claimant’s] work skills can be used in other work and the specific occupations in which they can be used, or there is a similarly complex issue.” The relationship between § 404.1566(d) and (e), and how these subsections should be applied to particular cases, is not clarified to any great extent by the agency’s other regulations or rulings.
At this point, we narrow our focus. Although Mrs. Haddock complains that the VE’s testimony conflicted with the Dictionary of Occupational Titles as to both the exertional and skill requirements, of the jobs the VE identified, we hold that the ALJ did not elicit enough evidence with regard to skills for us to assess whether there is a conflict between the Dictionary and the VE’s testimony on that job characteristic. By the same token, we cannot say that the ALJ’s conclusion that the identified jobs met the semi-skilled restriction he found the claimant to have is supported by substantial evidence.
The Dictionary uses a different and considerably more extensive classification scheme for skill requirements than the agency’s regulations. Compare Dictionary at xv & App. C, ¶¶ II, III with 20 C.F.R. § 404.1568. Section 404.1568 indicates that an ALJ should use information provided by the Dictionary to assess occupational skill requirements, but it is evident that the Dictionary’s information about skills must be massaged, if you will, into the agency’s three classifications (unskilled, semi-skilled, skilled). The ALJ did not ask the VE to explain his thought process, but settled for a summary conclusion. We therefore limit the rest of our discussion to exertional requirements.
Both the Dictionary and the agency’s regulations use the same designations— sedentary, light, etc.—for exertional requirements. See 20 C.F.R. § 404.1567. We therefore can assess whether the VE’s testimony, limited as it was to sedentary jobs by the ALJ’s hypothetical, conflicts with the Dictionary as to the exertional requirements of the jobs of parts clerk, materials lister, and inventory clerk. There is a conflict here, and we find it unnecessary to parse the regulations and rulings to reach the conclusion that the ALJ should have asked the expert how his testimony as to the exertional requirement of these three jobs corresponded with the Dictionary of Occupational Titles, and elicited a reasonable explanation for the discrepancy on this point, before he relied on the expert’s opinion that claimant could perform these three jobs.
The agency uses the Dictionary, among other publications listed in § 1566(d), as source material when it formulates the grids for use at step five.
See
Social Secu
To relieve the ALJ of the burden to thoroughly develop the vocational evidence at step five would shift the burden to the claimant in the form of a requirement to cross-examine the vocational expert. To do so would contravene basic principles of social security law, however. First, “[i]t is not [the claimant’s] burden to prove [h]e cannot work at any level lower than h[is] past relevant work; it is the [agency’s] burden to prove that [h]e can.”
Thompson,
Second, “[i]t is well established that a Social Security disability hearing is a nonadversarial proceeding.”
Id.
(quotation omitted);
see also, e.g., Heckler v. Campbell,
Third, regardless of what step is under evaluation, an ALJ has a duty to fully develop the record even when the claimant is represented by an attorney, as in this case.
See Thompson,
Finally, we note that our decision on this issue is consistent with the majority of circuits to have considered it.
See Porch v. Chater,
We do not mean by our holding that the Dictionary of Occupational Titles “trumps” a VE’s testimony when there is a conflict about the nature of a job. We hold merely that the ALJ must investigate and elicit a reasonable explanation for any conflict between the Dictionary and expert testimony before the ALJ may rely on the expert’s testimony as substantial evidence to support a determination of nondisability. One reasonable explanation would be that the job the VE is testifying about is not included in the Dictionary, but is documented in some other acceptable source.
See Johnson,
In this case, the ALJ found that Mr. Haddock was limited to sedentary, semiskilled work that would allow him to alternate sitting and standing. The case must be remanded for the ALJ to investigate whether there is a significant number of specific jobs Mr. Haddock could have done with his limitations.
The judgment of the United States District Court for the Eastern District of Oklahoma is REVERSED, and the case is REMANDED with instructions for the district court to remand to the agency for additional proceedings.
Notes
. Although appellant raises four issues on appeal, we have determined that this is the only issue that warrants discussion. Her other arguments are without merit.
. It may be argued that we suggested in
Gay v. Sullivan
that the claimant bears the burden to cross-examine a vocational expert concerning information in a publication, because we staled that 20 C.F.R. § 404.1566(d) and (e) “offer alternative avenues of proof” and that "sources of expert testimony ... may be tested by cross-examination.”
Gay
has been given a broader interpretation than that in two cases that dealt with an alleged inconsistency between an expert’s testimony and information in the Dictionary of Occupational Titles.
See Adams v. Apfel,
No. 97-5140,
