District of Columbia Code Division I. Government of District. § 7-1009. Definitions.

(1) The term “blind person” means, and the term “blind” refers to, a person who is totally blind, has impaired vision of not more than 20/200 visual acuity in the better eye and for whom vision cannot be improved to better than 20/200, or who has loss of vision due wholly or in part to impairment of field vision or to other factors which affect the usefulness of vision to a like degree.

(2) The term “deaf person” means a person who is totally deaf or a person with hearing impairment that severely interferes with his or her ability to hear environmental noises.

(3) The term “guide dog” means a dog that is specially trained to assist a blind or deaf person and one which a blind or deaf person relies on for assistance.

(4) The term “persons with physical or mental disabilities” refers to an individual who has a medically determinable physical or mental impairment that substantially limits the ability of one to assist one's self, to perform manual tasks, to engage in an occupation, to live independently, to walk, to see, or to hear.

(5) The term “service animal” means an animal, permitted in the District under § 8-1808(h)(1), including a guide dog, that is specially trained to assist a person who meets the definition of persons with physical or mental disabilities, and is one which a person with physical or mental disabilities relies on for disability-related assistance. The term also includes an animal in training by an organization that provides service animals to persons with physical or mental disabilities. The term does not encompass an animal whose sole purpose is to serve as a crime deterrent or that serves solely as a companion.

(6) The term “service animal in training” means an animal that is: