A person may qualify for disability for mental retardation. There are several ways to qualify for disability on this basis.
First, a person may qualify for disability on this basis if he suffers from mental incapacity that causes him to be dependent on others for his personal needs to such a degree that he cannot take intellectual tests to measure his intellectual functioning.
Second, a person may qualify if intelligence tests show that the person has an IQ of 59 or less.
Third, a person may qualify for disability due to mental retardation if he scores an IQ of 60 to 70 on intelligence tests, and has other physical or mental problems that limit his ability to work.
Fourth, a person may qualify if he has an IQ of 60 to 70, and that impairment interferes with his activities of daily living, social functioning or concentration.