Unreported / Non-Citable
Background
Ismelda M. challenged the denial of disability insurance benefits after an unusually long administrative history. A federal court’s 2018 remand left her physical residual functional capacity—the most she could still do in a work setting—intact while directing further findings about literacy. That capacity included an hourly sit-or-stand option while remaining on task and only occasional turning of her head to the right.
After another stipulated remand and a new hearing, an administrative law judge adopted a less restrictive capacity. The new assessment omitted the hourly position-change requirement and barred only constant rightward head or neck turning. Based on that changed assessment, a vocational expert identified assembler and collator-operator jobs. Ismelda also challenged the reliability of the expert’s national job estimates.
The Court’s Holding
The court reversed because the agency did not justify departing from physical restrictions preserved by the earlier judicial decision. The law-of-the-case doctrine generally prevents reconsideration of an issue already decided, while the rule of mandate requires an agency to carry out the court’s remand instructions. General language in the later stipulated remand allowing further record development did not erase the earlier ruling or identify any problem with those physical limitations.
The later medical testimony did not supply substantially different evidence supporting the relaxed restrictions. Nor did testimony that Ismelda’s condition deteriorated after the insured period justify making her capacity less restrictive during the relevant period. The error mattered because the vocational expert had not established that the identified work could be performed with both the hourly on-task sit-or-stand option and only occasional rightward head turning.
The court rejected Ismelda’s separate job-number arguments as an independent basis for reversal. Some of her data corroborated the expert’s raw counts, and other survey evidence did not establish the necessary connection between broad occupational groups and her vocational profile. Still, the mandate error required further proceedings. The agency must obtain new vocational testimony using the preserved limits, the six-hour maximum for standing and walking, and other supported restrictions. The court declined to award benefits outright because the vocational consequences remain unresolved.
Key Takeaways
- Law-of-the-case and mandate principles apply to Social Security proceedings after a federal-court remand.
- Broad permission to develop the record does not silently authorize an administrative law judge to discard limitations preserved by an earlier judicial ruling.
- Departure from a prior residual functional capacity requires a recognized basis, such as materially different evidence or changed controlling law.
- Vocational testimony must address the claimant’s actual combination of limitations; testimony based on a less restrictive hypothetical cannot establish harmless error.
- Job-number challenges must connect the competing data to the specific occupations and the claimant’s vocational characteristics.
Why It Matters
California disability lawyers handling repeat remands should track precisely which findings a district court affirmed, left intact, or directed the agency to revisit. A later remand’s general wording may allow new evidence, but it does not necessarily reopen every prior finding.
The ruling also shows why the hearing hypothetical matters. When an agency changes limitations after remand, counsel should ask whether the record contains genuinely new evidence and whether the vocational expert evaluated both the old and new formulations. Here, the absence of testimony using the preserved restrictions required another remand.