Tracking the Affordable Care Act, State by State

Our collaborative Affordable Care Act Implementation Network connects researchers across the country to follow and analyze the implementation of this broad and quickly evolving law.

Learn more and read the reports.


Below, read featured reports from our health experts.

For older reports, browse the archive.


The Shape of Water Regulations: The Disputed Waters of the United States

This policy brief examines the Trump Administration’s new definition of “waters of the United States” under the federal Clean Water Act, how the definition delineates which waters are and aren’t protected under the Act, and the potential impact of the new definition on environmental and public health.

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