; and (cc) at least 1 nurse aide (as defined in paragraph (5)(F)) for every 15 residents, with a minimum of 0.53 hours of care provided per resident during such shift. (V) Secretarial authority to establish higher minimum nurse staffing levels The Secretary may establish and require nursing facilities (or, at the Secretary’s discretion, only nursing facilities that have a higher percentage of residents with extensive care needs, as determined by the Secretary) to provide for minimum nurse staffing levels that are higher than the levels required under this clause. (VI) Rule of construction regarding State authority to establish higher minimum nurse staffing levels Nothing in this clause may be construed as preventing a State from establishing or requiring nursing facilities in the State to provide for minimum nurse staffing levels that are higher than the levels required under this clause. (VII) Clarification with respect to minimum hours of care provided per resident requirements In complying with the minimum hours of care provided per resident requirements under this clause, a nursing facility may not count any time spent by a registered professional nurse, licensed practical nurse, or nurse aide on administrative services towards compliance with such requirements. (VIII) Definitions In this clause: (aa) Administrative services The term administrative services means food preparation, housekeeping, laundry services, maintenance services, and other noncaregiving-related services, as determined by the Secretary. (bb) Day shift The term day shift means, with respect to a day and a nursing facility, an assigned work shift that is a period of 8 consecutive hours, beginning not sooner than 6 a.m. in the time zone in which such facility is located and not later than 8 a.m. in such time zone. (cc) Evening shift The term evening shift means, with respect to a day and a nursing facility, an assigned work shift that is a period of 8 consecutive hours, beginning not sooner than 2 p.m. in the time zone in which such facility