; (iii) describe how the State will set payment rates for child care services, for which assistance is provided in accordance with this subchapter— (I) in accordance with the most recent estimates from the most recent cost estimation model used pursuant to clause (i), so that providers at each tier of the tiered and transparent system for measuring program quality receive payment that is not less than the cost of meeting the requirements of such tier; and (II) that maintain an effective and diverse workforce by ensuring wages for staff of child care providers that— (aa) are comparable to wages for elementary educators with similar credentials and experience in the State; and (bb) at a minimum, provide a living wage for all staff of child care providers; and (iv) describe how the State will provide for timely payment for child care services provided under this subchapter. (C) Payment practices The State plan shall include— (i) a certification that the payment practices of child care providers in the State that serve children who receive assistance under this subchapter reflect generally accepted payment practices of child care providers in the State that serve children who do not receive assistance under this subchapter, including the practice of paying the providers the payment rate described in subparagraph (A)(i) based on the number of children enrolled and not the number of children in daily attendance, so as to provide stability of funding and encourage more child care providers to serve children who receive assistance under this subchapter