In a NOSSCR CLE and in hearings before SSA, I heard presenters, vocational witnesses, and ALJs express reliance on the hours of the day for sitting and standing (including walking) relying on the Occupational Requirements Survey. In Social Security disability hearings, reliance on hours in a day is a mistake.
We use packers and packagers, hand (SOC 53-7064) as our example of the day. The ORS reports:
Occupational Requirements –
sitting, standing (including walking) |
2018 |
2023 |
2024 |
choice of sitting or standing is
allowed |
4.3 |
2.3 |
<0.5 |
choice of sitting or standing is
not allowed |
95.7 |
97.7 |
>99.5 |
Percent of Day standing is
required (10th percentile) |
90 |
90 |
100 |
Percent of Day standing is
required (25th percentile) |
100 |
100 |
100 |
Percent of Day standing is
required (50th percentile - median) |
100 |
100 |
100 |
Percent of Day standing is
required (75th percentile) |
100 |
100 |
100 |
Percent of Day standing is
required (90th percentile) |
100 |
100 |
100 |
Percent of Day standing is
required, mean |
95.5 |
95.9 |
98 |
hours of standing (10th
percentile) |
4 |
4 |
6 |
hours of standing (25th
percentile) |
5 |
5.88 |
6 |
hours of standing (50th
percentile - median) |
8 |
8 |
8 |
hours of standing (75th
percentile) |
8 |
8 |
8 |
hours of standing (90th
percentile) |
8 |
8 |
12 |
The amount of standing at the 10th and 25th percentiles falls within the generally used (and wrong) assumption that light and medium work require six hours of standing/walking during a workday. The question is whether those jobs are full-time work. Packers and packagers stand 90 to 100% of the workday at the 10th and 25th percentiles. How can that be? The jobs are part-time. If a job requires four to six hours of standing during the workday and that standing represents at least 90% of the workday, the person is not working and eight-hour workday. Algebraically:
Workday x 90% = 4 hours
Divide each side by 90%.
Workday = 4 hours / 90%
Workday = 4.44 hours
The O*NET reports that all packers and packagers work at least a 40-hour workweek. The ORS disagrees. In the special release dataset for "SVP 1-2 and 35-40 weekly hours - reference year 2023," the downloaded XLSX spreadsheet states that 58.2% of packers and packagers work 35-40 hours and requires a high school diploma or less; 44.4% of packers and packagers have no minimum education requirement. The ORS reports that 18.2% of packers and packagers require a high school diploma and 70.3% have no minimum education requirement. How do we get from 88% and 70% down to 58% and 44%? Some of the jobs require more than 40 hours and some represent part-time work.
SSR 96-8p is clear that full-time work satisfies the Commissioner's burden at step five - the existence of other work assuming the claimant's medical-vocational profile. (A "regular and continuing basis" means 8 hours a day, for 5 days a week, or an equivalent work schedule.). At step four, part-time work may matter. (The ability to work 8 hours a day for 5 days a week is not always required when evaluating an individual's ability to do past relevant work at step 4 of the sequential evaluation process. Part-time work that was substantial gainful activity, performed within the past 15 years, and lasted long enough for the person to learn to do it constitutes past relevant work, and an individual who retains the RFC to perform such work must be found not disabled.).
Do not allow vocational witnesses to use "hours" as a substitute for "percentage of the day" when assessing the requirements of work. Part-time work does not count.
That was not always the case. Prior to 2003, the regulations provided for a step-five finding of the ability to perform other work "on a full-time or reasonably regular part-time basis." 20 CFR 404.1562, 416.962 (2002). SSA deleted that language in 2003. 68 Fed. Reg. 51153 (Aug. 26, 2003). The notice explains:
However, in SSR 96-8p, we explain that at step 5 we consider only full-time work when we consider other work you are able to do. (See 61 FR 34474, 34475 (July 2, 1996).)
The number of hours that includes consideration of part-time work is not probative at step five. The percentage of the day is the better measure of how much time a worker will spend sitting or standing/walking during a full-time workday.
___________________________
Suggested Citation:
Lawrence Rohlfing, It Is the Percentage of the Day, Not the Hours of the Day that Matters, California Social Security Attorney (July 25, 2025) https://californiasocialsecurityattorney.blogspot.com
The author has been AV-rated since 2000 and listed in Super Lawyers since 2008.