42 CFR 457.505 - General State plan requirements.
The State plan must include a description of -
(a) The amount of premiums, deductibles, coinsurance, copayments, and other cost sharing imposed;
(b) The methods, including the public schedule, the State uses to inform enrollees, applicants, providers and the general public of the cost-sharing charges, the cumulative cost-sharing maximum, and any changes to these amounts;
(c) The disenrollment protections as required under § 457.570;
(d) In the case of coverage obtained through premium assistance for group health plans -
(1) The procedures the State uses to ensure that eligible children are not charged copayments, coinsurance, deductibles or similar fees on well-baby and well-child care services described at § 457.520, and that any cost sharing complies with the requirements of this subpart;