Where do Social Security vocational experts get their information?

I was recently asked where Vocational Experts get their information from?

There a number of sources Vocational Experts use:

• The Dictionary of Occupational Titles
• Selected Characteristics of Occupations
• Job surveys performed by the Vocational Expert
• Services Vocational Experts sign up for which provide job titles, requirements and national and regional job numbers. 

If you are working with a lawyer, he or she probably has at least some of these and can verify the skill level, exertional and non-exertional requirements of a jobs the Vocational Expert testified about.