1. Short title This Act may be cited at the Health Care Choice and Affordability Act . 2. Medicaid buy-in plans (a) In general (1) Offering on an Exchange For a plan year beginning on or after January 1, 2018, notwithstanding any other provision of law, a Medicaid buy-in State may offer to eligible individuals with respect to a plan year a Medicaid buy-in plan in the individual market through an Exchange established under title I of the Patient Protection and Affordable Care Act for such plan year. (2) Premium rates (A) In general A Medicaid buy-in State that offers a Medicaid buy-in plan under paragraph (1) shall establish premium rates under such plan at a level calculated to produce revenue equal to the sum of— (i) the costs of health benefits provided by the plan