In this part:

(1) Child The term “child” means an individual who is not more than 18 years of age.

(2) Individual with a disability The term “individual with a disability” means an individual with a disability, as defined in section 12102 of this title, who is not less than age 18 and not more than age 59.

The term “older relative caregiver” means a caregiver who—

(A) (i) is age 55 or older; and (ii) lives with, is the informal provider of in-home and community care to, and is the primary caregiver for, a child or an individual with a disability;

(B) in the case of a caregiver for a child— (i) is the grandparent, stepgrandparent, or other relative (other than the parent) by blood, marriage, or adoption, of the child; (ii) is the primary caregiver of the child because the biological or adoptive parents are unable or unwilling to serve as the primary caregivers of the child; and (iii) has a legal relationship to the child, such as legal custody, adoption, or guardianship, or is raising the child informally; and

(C) in the case of a caregiver for an individual with a disability, is the parent, grandparent, or other relative by blood, marriage, or adoption, of the individual with a disability.

In providing services under this part, for family caregivers who provide care for individuals with Alzheimer’s disease and related disorders with neurological and organic brain dysfunction, the State involved shall give priority to caregivers who provide care for older individuals with such disease or disorder.

(Pub. L. 89–73, title III, § 372, as added Pub. L. 106–501, title III, § 316(2), Nov. 13, 2000, 114 Stat. 2254; amended Pub. L. 109–365, title III, § 320, Oct. 17, 2006, 120 Stat. 2551; Pub. L. 114–144, § 4(k)(2), (m), Apr. 19, 2016, 130 Stat. 340, 341.)