Challenging VE Testimony With DOT and SCO Conflicts

Challenging vocational expert (VE) testimony with conflicts between the expert's numbers and the Dictionary of Occupational Titles (DOT) is still one of the most effective ways to attack an unfavorable job list at an SSDI hearing. The rule that governed this tactic for 25 years, SSR 00-4p, was rescinded on January 6, 2025, when SSA issued SSR 24-3p. In 2026 the DOT conflict argument survives, but you, not the judge, are now expected to surface it.

What SSR 00-4p Required

SSA issued SSR 00-4p in 2000. It required adjudicators to identify and obtain a reasonable explanation for any conflict between occupational evidence provided by a VE or vocational specialist and information in the DOT, including its companion volume, the Selected Characteristics of Occupations Defined in the Revised Dictionary of Occupational Titles (SCO). The adjudicator then had to explain in the determination or decision how any identified conflict was resolved.

That duty gave representatives a structural weapon. If testimony identified a job with requirements the DOT does not recognize, the judge had to resolve the gap on the record before relying on the testimony. Unexplained conflicts became grounds for remand on appeal.

SSR 00-4p still matters for one group of claimants: anyone whose claim was decided before January 6, 2025 and is now challenging that decision. The old ruling supplies the standard the deciding officials were required to apply at the time.

What SSR 24-3p Changed

SSR 24-3p, published in the Federal Register at 89 FR 97158 and effective January 6, 2025, rescinded and replaced SSR 00-4p. SSA explained that identifying and resolving DOT conflicts was time consuming, drove unnecessary remands, and discouraged experts from using reliable modern data sources built on the Standard Occupational Classification (SOC) system, which federal statistical agencies now use in place of the older DOT taxonomy.

The agency no longer requires adjudicators to identify and resolve conflicts between VE testimony and the DOT. At the same time, SSR 24-3p keeps the DOT alive as an occupational source and imposes specific disclosure duties on experts. Those duties are where the modern conflict argument lives.

What Did Not Change

SSA still takes administrative notice of reliable job information under 20 CFR 404.1566(d), and SSR 24-3p states that the DOT remains a valid and reliable source the agency will continue to use. Regulatory definitions still control over any data source. Exertion levels like sedentary and light under 20 CFR 404.1567 carry the same meaning they carry in the DOT, and the skill definitions in 20 CFR 404.1568 correspond to DOT specific vocational preparation (SVP) ratings, with SVP 1 to 2 unskilled, 3 to 4 semiskilled, and 5 to 9 skilled.

HALLEX I-2-6-74 still gives you the right to question the VE fully on any pertinent matter within the expert's area of expertise. And SSR 24-3p itself says that when the claimant is represented, SSA expects the representative to raise any relevant questions or challenges about the VE's testimony at the time of the hearing. The burden of spotting problems shifted from the judge to you, which makes preparation decisive.

Five Conflicts Still Worth Raising

Exertion mismatches

Regulatory light work means lifting no more than 20 pounds occasionally and 10 pounds frequently, per 20 CFR 404.1567(b). HALLEX I-2-6-74 notes that the Bureau of Labor Statistics Occupational Requirements Survey (ORS) defines light work differently, allowing carrying of 11 to 25 pounds occasionally or seldom. If the VE relies on ORS data, ask whether jobs requiring those extra pounds were screened out of the list.

Skill and SVP inflation

Unskilled work corresponds to SVP 1 to 2, which HALLEX I-2-6-74 explains as work a person can typically learn in 30 days or less. If the VE calls an occupation unskilled but the DOT code carries an SVP of 4 or higher, or the expert's data source defines unskilled more loosely than SSA's rules, the mismatch can shrink the job list.

Occupations the DOT describes with outdated processes

The Department of Labor last revised the DOT in 1991. SSA's Emergency Message EM-24027 REV flags DOT occupations that reference materials or processes replaced by modern practice, and HALLEX I-2-6-74 gives document preparer as an example. If the VE cites a flagged occupation, the expert must explain how the job is performed today and why it still fits your residual functional capacity, along with evidence the occupation exists in significant numbers.

SOC aggregation and job counts

SSR 24-3p's own illustration involves a VE who cited the DOT occupation Fast-Foods Worker, code 311.472-010, then estimated 1,300,000 jobs inside a Bureau of Labor Statistics OEWS count of 3,325,050 jobs for the broader SOC group 35-3023, Fast Food and Counter Workers. The ruling requires the expert to explain the general approach used to carve a DOT occupation out of a bigger SOC group. If that explanation is absent, the adjudicator should ask for one.

Definitions that differ from agency rules

SSR 24-3p expects an expert who uses a source defining exertion, education, or skill differently from SSA rules to acknowledge the difference and explain how it was accounted for. Testimony that cannot be reconciled with the regulatory definitions is a soft spot for cross-examination, because the regulations control the adjudication.

How to Raise the Conflict at the Hearing

• Ask the VE to state each occupation by DOT code, title, and SVP before discussing job numbers.
• Ask which data sources supplied the exertional demands, the skill ratings, and the job counts, and whether those sources use the DOT or the SOC system.
• Ask whether any source defines light, medium, unskilled, or semiskilled differently from SSA's regulations at 20 CFR 404.1567 and 404.1568.
• Confront the expert with the specific DOT or SCO entry for each job cited and ask which statement controls the answer.
• Ask whether any cited occupation appears on SSA's EM-24027 REV list of DOT occupations with outdated materials or processes.

If the answers are vague, say so on the record and press politely for specifics. The United States Supreme Court held in Biestek v. Berryhill (2019) that VE testimony must still amount to substantial evidence, and an unexplained methodology is the classic weakness.

If the Expert Cannot Explain

HALLEX I-2-6-74 instructs the ALJ to ask follow-up questions when a VE does not provide the information SSR 24-3p expects. If the gap remains, the judge may issue interrogatories or hold a supplemental hearing, and if the record still lacks adequate evidence, the adjudicator must develop it before making a supported finding at Step 4 or Step 5. Your job is to make the gap visible early and clearly enough that the duty attaches.

Prehearing Preparation

Under HALLEX I-2-6-74, the notice of hearing must tell you that a VE will appear and describe how the expert will participate. Before the hearing, list every job you performed in the past five years, note the DOT codes the file assigns to them, and compare the SCO strength and SVP ratings against your residual functional capacity. Arrive with the specific entries marked, because a conflict you cannot quote is a conflict the judge never has to face.

Frequently Asked Questions

Is SSR 00-4p still good law in 2026? No. SSR 24-3p rescinded and replaced it effective January 6, 2025. SSR 00-4p still supplies the standard of review for decisions issued before that date.

Can a vocational expert still rely on the DOT in 2026? Yes. SSR 24-3p keeps the DOT as a valid and reliable source, and experts may also use SOC-based federal data such as the OEWS and ORS, provided they explain how they used it.

What happens if the VE cannot explain the data source or approach? HALLEX I-2-6-74 directs the ALJ to ask clarifying questions, issue interrogatories, or hold a supplemental hearing to develop the record before relying on the testimony.

This article provides general information about Social Security Disability Insurance rules and is not legal advice. Program rules, administrative procedures, and regulations change over time, and all figures reflect standards applicable in 2026. Consult a qualified representative or contact the Social Security Administration directly for guidance regarding your individual claim.