Chronically homeless means:
(1) A “homeless individual with a disability,” as defined in section 401(9) of the McKinney-Vento Homeless Assistance Act (42 U.S.C. 11360(9)), who:
(i) Lives in a place not meant for human habitation, a safe haven, or in an emergency shelter; and
(ii) Has been homeless and living as described in paragraph (1)(i) of this definition continuously for at least 12 months or on at least 4 separate occasions in the last 3 years, as long as the combined occasions equal at least 12 months and each break in homelessness separating the occasions included at least 7 consecutive nights of not living as described in paragraph (1)(i). Stays in institutional care facilities for fewer than 90 days will not constitute as a break in homelessness, but rather such stays are included in the 12-month total, as long as the individual was living or residing in a place not meant for human habitation, a safe haven, or an emergency shelter immediately before entering the institutional care facility;
(2) An individual who has been residing in an institutional care facility, including a jail, substance abuse or mental health treatment facility, hospital, or other similar facility, for fewer than 90 days and met all of the criteria in paragraph (1) of this definition, before entering that facility; or
(3) A family with an adult head of household (or if there is no adult in the family, a minor head of household) who meets all of the criteria in paragraph (1) or (2) of this definition, including a family whose composition has fluctuated while the head of household has been homeless.