Great to hear it! Here is the relevant statute:
Sec. 12102. Definition of disability
As used in this chapter:
The term "disability" means, with respect to an individual
(A) a physical or mental impairment that substantially limits one or more major life activities of such individual;
(B) a record of such an impairment; or
(C) being regarded as having such an impairment (as described in paragraph (3)).
(2) Major Life Activities
(A) In general
For purposes of paragraph (1), major life activities include, but are not limited to, caring for oneself, performing manual tasks, seeing, hearing, eating, sleeping, walking, standing, lifting, bending, speaking, breathing, learning, reading, concentrating, thinking, communicating, and working.
(B) Major bodily functions
For purposes of paragraph (1), a major life activity also includes the operation of a major bodily function, including but not limited to, functions of the immune system, normal cell growth, digestive, bowel, bladder, neurological, brain, respiratory, circulatory, endocrine, and reproductive functions.
(3) Regarded as having such an impairment
For purposes of paragraph (1)(C):
(A) An individual meets the requirement of "being regarded as having such an impairment" if the individual establishes that he or she has been subjected to an action prohibited under this chapter because of an actual or perceived physical or mental impairment whether or not the impairment limits or is perceived to limit a major life activity.
(B) Paragraph (1)(C) shall not apply to impairments that are transitory and minor. A transitory impairment is an impairment with an actual or expected duration of 6 months or less.
(4) Rules of construction regarding the definition of disability
The definition of "disability" in paragraph (1) shall be construed in accordance with the following:
(A) The definition of disability in this chapter shall be construed in favor of broad coverage of individuals under this chapter, to the maximum extent permitted by the terms of this chapter.
(B) The term "substantially limits" shall be interpreted consistently with the findings and purposes of the ADA Amendments Act of 2008.
(C) An impairment that substantially limits one major life activity need not limit other major life activities in order to be considered a disability.
(D) An impairment that is episodic or in remission is a disability if it would substantially limit a major life activity when active.
(i) The determination of whether an impairment substantially limits a major life activity shall be made without regard to the ameliorative effects of mitigating measures such as
(I) medication, medical supplies, equipment, or appliances, low-vision devices (which do not include ordinary eyeglasses or contact lenses), prosthetics including limbs and devices, hearing aids and cochlear implants or other implantable hearing devices, mobility devices, or oxygen therapy equipment and supplies;
(II) use of assistive technology;
(III) reasonable accommodations or auxiliary aids or services; or
(IV) learned behavioral or adaptive neurological modifications.
(ii) The ameliorative effects of the mitigating measures of ordinary eyeglasses or contact lenses shall be considered in determining whether an impairment substantially limits a major life activity.
(iii) As used in this subparagraph
(I) the term "ordinary eyeglasses or contact lenses" means lenses that are intended to fully correct visual acuity or eliminate refractive error; and
(II) the term "low-vision devices" means devices that magnify, enhance, or otherwise augment a visual image.
Sec. 12111. Definitions
(10) Undue hardship
(A) In general
The term "undue hardship" means an action requiring significant difficulty or expense, when considered in light of the factors set forth in subparagraph (B).
(B) Factors to be considered
In determining whether an accommodation would impose an undue hardship on a covered entity, factors to be considered include
(i) the nature and cost of the accommodation needed under this chapter;
(ii) the overall financial resources of the facility or facilities involved in the provision of the reasonable accommodation; the number of persons employed at such facility; the effect on expenses and resources, or the impact otherwise of such accommodation upon the operation of the facility;
(iii) the overall financial resources of the covered entity; the overall size of the business of a covered entity with respect to the number of its employees; the number, type, and location of its facilities; and
(iv) the type of operation or operations of the covered entity, including the composition, structure, and functions of the workforce of such entity; the geographic separateness, administrative, or fiscal relationship of the facility or facilities in question to the covered entity.
You can find the full law below: