For purposes of this division, the following terms shall have the following meanings as provided in this section:

(1) INDIVIDUAL WITH A LONG-TERM DISABILITY. Any person with a long-term disability which limits or impairs the ability of the person to walk, and the person meets any one of the following conditions, as determined by a licensed physician:

a. The person cannot walk 200 feet without stopping to rest.

b. The person cannot walk without the use of, or assistance from, a brace, cane, crutch, another person, prosthetic device, wheelchair, or other assistive device.

c. The person is restricted by lung disease to such an extent that the person's forced respiratory expiratory volume for one second, when measured by spirometry, is less than one liter, or the arterial oxygen tension is less than 60 mm/hg, millimeters of mercury, on room air at rest.

d. The person uses portable oxygen.

e. The person has a cardiac condition to the extent that the functional limitation of the person is classified in severity as Class III or Class IV according to standards set by the American Heart Association.

f. The person is severely limited in his or her ability to walk due to an arthritic, neurological, or orthopedic condition.

(2) INDIVIDUAL WITH A TEMPORARY DISABILITY. Any person having a temporary, for a period up to six months, disability, as determined by a licensed physician, which limits or impairs the ability to walk as specified in subdivision (1).

(3) LICENSED PHYSICIAN. A doctor of medicine or a doctor of osteopathy licensed to practice medicine or a person employed by the U. S. government as a doctor of medicine or doctor of osteopathy to practice medicine.