Federal health officials are proposing changes to rules for coverage sold through the ACA’s insurance marketplaces that, starting in 2019, would let states alter the benefits that health plans must provide and limit enrollment help for consumers. In envisioning a larger role for states in setting benefits, the draft rule would still require ACA plans to cover 10 categories of medical services. But for the first time, any state could adopt benefits standards already in use by another state—or rewrite its own standards.

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