; and (II) any provider whose contract with the plan or issuer terminated, or was not renewed, for the remainder of the plan year for reasons relating to a medical disciplinary cause, fraud, or other criminal activity. (g) Limitations on changes in coverage of prescription drugs (1) In general A group health plan or health insurance issuer offering group or individual health insurance coverage shall not, during a plan year, take any of the following actions with respect to coverage for such plan year: (A) Remove a prescription drug from a formulary of prescription drugs covered by such plan or coverage, except as provided in paragraph (2)(C). (B) Increase the obligation of a participant, beneficiary, or enrollee with respect to cost-sharing, as defined in section 1302(c)(3) of the Patient Protection and Affordable Care Act, for a prescription drug covered under such plan or coverage. (2) Rule of construction Nothing in this subsection shall prohibit a group health plan or health insurance issuer offering group or individual health insurance coverage from, during a plan year, taking any of the following actions with respect to coverage under the plan or health insurance coverage for such plan year: (A) Changing the policy of the plan or health insurance coverage to require a participant, beneficiary, or enrollee to use a generic substitution for a branded prescription drug. (B) Adding a new prescription drug to a formulary of prescription drugs covered by such plan or health insurance coverage. (C) Removing a prescription drug from such a formulary due to patient safety concerns, or a prescription drug recall, or removing a prescription drug from interstate commerce as determined necessary by the Secretary. . (b) Effective date The amendments made by this section shall apply to plan years beginning after December 31, 2020. 404. Limitation on balance billing for emergency services (a) In general A health care provider that provides any emergency service to an individual that is a participant, beneficiary, or