29 CFR Part 1630, Regulations to Implement the Equal Employment Provisions of the ADA (Title I Regulations with amendments issued through May 2016)

(k) Has a record of such an impairment—

(1) In general. An individual has a record of a disability if the individual has a history of, or has been misclassified as having, a mental or physical impairment that substantially limits one or more major life activities.

(2) Broad construction. Whether an individual has a record of an impairment that substantially limited a major life activity shall be construed broadly to the maximum extent permitted by the ADA and should not demand extensive analysis. An individual will be considered to have a record of a disability if the individual has a history of an impairment that substantially limited one or more major life activities when compared to most people in the general population, or was misclassified as having had such an impairment. In determining whether an impairment substantially limited a major life activity, the principles articulated in paragraph (j) of this section apply.

(3) Reasonable accommodation. An individual with a record of a substantially limiting impairment may be entitled, absent undue hardship, to a reasonable accommodation if needed and related to the past disability. For example, an employee with an impairment that previously limited, but no longer substantially limits, a major life activity may need leave or a schedule change to permit him or her to attend follow-up or “monitoring” appointments with a health care provider.