(a) In general Section 2729B of the Public Health Service Act, as added by section 301, is amended by adding at the end the following: (b) Protecting Health Plans Network Design Flexibility (1) In general A group health plan or a health insurance issuer offering group or individual health insurance coverage shall not enter into an agreement with a provider, network or association of providers, or other service provider offering access to a network of service providers if such agreement, directly or indirectly— (A) restricts the group health plan or health insurance issuer from— (i) directing or steering enrollees to other health care providers