PDF Version: http://mcs-america.org/August2009pg67.pdf
Online Version: http://mcs-america.org/mcsanewsaugust2009.htm#_The_History_of_
"It used to be that the SSA had a vocational expert at each and every hearing. Vocational experts are people who are experts on jobs. Many of them do job placement for workers compensation insurance carriers. Not only was it expensive to have a live expert at each hearing, but the opinions varied widely. This was not an exact science. To solve these problems, SSA promulgated regulations in 1978 which set up criteria to be followed to analyze vocational issues. The results were put together in a chart, which looked like a spreadsheet and quickly came to be known as "The Grid"."