As used in this title:

1. 1. "Child" shall mean a person under the age of twenty-one years whose custody, care and custody, or custody and guardianship have been committed to a social services official prior to such person's eighteenth birthday pursuant to section three hundred fifty-eight-a, three hundred eighty-four, three hundred eighty-four-a or three hundred eighty-four-b of this chapter or article three, seven, ten or 10-C of the family court act.
2. 2. "Applicable board rate" shall mean an amount equal to the monthly payment that has been made by a social services official, in accordance with section three hundred ninety-eight-a of this article and other provisions of this chapter, for the care and maintenance of the child, while such child was boarded out in the approved or certified foster family boarding home with the prospective relative guardian. Such rate shall reflect annual changes in room and board rates and clothing replacement allowances.

3. 3. "Prospective relative guardian" shall mean a person who has been caring for the child as a fully certified or approved foster parent for at least six consecutive months prior to applying for kinship guardianship assistance payments and who:

   1. (a) is related to the child through blood, marriage, or adoption; or
   2. (b) is related to a half-sibling of the child through blood, marriage or adoption and where such person or persons is or are also the prospective or appointed relative guardian or guardians of such half-sibling; or
   3. (c) is an adult with a positive relationship with the child, including, but not limited to, a step-parent, godparent, neighbor or family friend.
4. 4. "Relative guardian" shall mean a person or persons who was appointed, as a guardian or permanent guardian for a child after entering into an agreement with a social services official for the receipt of payments and services in accordance with this title.
5. 5. "Social services official" shall mean a county commissioner of social services, a city commissioner of social services, or an Indian tribe with which the office of children and family services has entered into an agreement to provide foster care services in accordance with subdivision two of section thirty-nine of this chapter.
6. 6. "Successor guardian" shall mean a person or persons that is approved by a local social services district to receive payments pursuant to this title in accordance with subparagraph (ii) of paragraph (b) of subdivision five of section four hundred fifty-eight-b of this title and that has been named in the agreement in effect between the relative guardian and social services official for kinship guardianship assistance payments pursuant to this title who shall provide care and guardianship for a child in the event of death or incapacity of the relative guardian, as set forth in section four hundred fifty-eight-b of this title, who has assumed care for and is the guardian or permanent guardian of such child, provided that such person was appointed guardian or permanent guardian of such child by the court following, or due to, the death or incapacity of the relative guardian. Once approved in accordance with subparagraph (ii) of paragraph (b) of section four hundred fifty-eight-b of this title, a successor guardian shall be deemed to have the same rights and responsibilities as a relative guardian in relation to any provisions of this title and any agreement entered into under this title.
7. 7. "Prospective successor guardian" shall mean a person or persons whom a prospective relative guardian or a relative guardian seeks to name or names in the original kinship guardianship assistance agreement, or any amendment thereto, as set forth in section four hundred fifty-eight-b of this title, as the person or persons to provide care and guardianship for a child in the event of the death or incapacity of a relative guardian, who has not been approved in accordance with subparagraph (ii) of paragraph (b) of subdivision five of section four hundred fifty-eight-b of this title.
8. 8. "Incapacity" shall mean a substantial inability to care for a child as a result of: (a) a physically debilitating illness, disease or injury; or (b) a mental impairment that results in a substantial inability to understand the nature and consequences of decisions concerning the care of a child.