32 Miss. Code. R. 10-5-5.5
A physical or mental impairment must be assessed in terms of the difficulties the impairment presents to the individual's ability to function vocationally. Functional limitations are defined as substantial impediments, directly related to an employment outcome, that result from the individual's disability in areas of communication, interpersonal skills, self-care, self-direction, mobility, work tolerance, and work skills.
Substantial impediment to employment means that a physical or mental impairment (in consideration of medical, psychological, vocational, educational, or other related factors) hinders an individual from preparing for, entering into, engaging in, or retaining competitive integrated employment consistent with the individual's abilities, capabilities, and informed choice.
32 Miss. Code. R. 10-5-5.5