; (III) certify that the State— (aa) not later than 30 days after finalizing the cost estimation model or cost study, published a detailed report containing the child care costs estimated with the cost estimation model or cost study, and including an explanation detailing how the wage requirements described in subclause (IV)(cc) were applied in the estimation of such costs; and (bb) not later than 60 days after publishing the report, established a system to receive public comment on the report about making changes to the cost estimation model or cost study, provided an opportunity for the public to comment on the report through that system, and submitted the report to the Secretary; and (IV) certify that the State’s payment rates for direct child care services for which assistance is provided in accordance with this section— (aa) are set (with pay being paid) in accordance with the most recent estimates from the most recent cost estimation model or cost study under subclause (I), so that providers at each tier of the tiered system for recognizing and supporting the quality of child care services described in subparagraph (B) receive a payment that is sufficient to fully meet the requirements of such tier; (bb) are set so as to provide payments to providers not at the top tier of the tiered system that are sufficient to enable the providers to increase quality to meet the requirements for the next tier; (cc) ensure adequate wages for staff of child care providers providing such direct child care services that— (AA) at a minimum, provide a living wage for all staff of such child care providers; and (BB) are equivalent to wages for elementary educators with similar credentials and experience in the State; and (dd) are adjusted on an annual basis for cost-of-living increases to ensure those payment rates remain sufficient to meet the requirements of this section