"Caregiver" means an adult who provides care for a mentally or physically impaired person within the Commonwealth. A caregiver shall be either related by blood, marriage, or adoption to or the legally appointed guardian of the mentally or physically impaired person for whom he is caring.
"Mentally or physically impaired person" means a person who is a resident of Virginia and who requires assistance with two or more activities of daily living, as defined in § 63.2-2200, as certified in a writing provided by a physician licensed by the Commonwealth.
"Temporary family health care structure" means a transportable residential structure, providing an environment facilitating a caregiver's provision of care for a mentally or physically impaired person, that (i) is primarily assembled at a location other than its site of installation; (ii) is limited to one occupant who shall be the mentally or physically impaired person or, in the case of a married couple, two occupants, one of whom is a mentally or physically impaired person, and the other requires assistance with one or more activities of daily living as defined in § 63.2-2200, as certified in writing by a physician licensed in the Commonwealth; (iii) has no more than 300 gross square feet; and (iv) complies with applicable provisions of the Industrialized Building Safety Law (§ 36-70 et seq.) and the Uniform Statewide Building Code (§ 36-97 et seq.). Placing the temporary family health care structure on a permanent foundation shall not be required or permitted.
Va. Code § 15.2-2292.1