http://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co.#
http://en.wikipedia.org/wiki/Civil_Rights_Act_of_1991
Are those the same protected groups which tend to not have degrees or other certifications? Because "ban the IQ test, ask for a degree" might have a similar effect.
http://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co.#
http://en.wikipedia.org/wiki/Civil_Rights_Act_of_1991