No State shall be considered to have failed to comply with the provisions of section
1396a
(a)(29) of this title because the agency or board of such State (established pursuant to subsection (b) of this section) shall have granted any waiver, with respect to any individual who, during all of the three calendar years immediately preceding the calendar year in which the requirements prescribed in section
1396a
(a)(29) of this title are first met by the State, has served as a nursing home administrator, of any of the standards developed, imposed, and enforced by such agency or board pursuant to subsection (c) of this section.