Washington is the first state to enact the Uniform Antitrust Premerger Notification Act, which requires merging parties that submit a federal filing under the Hart-Scott-Rodino (HSR) Act to also submit the HSR filing to the Washington attorney general if the deal has a sufficient nexus to Washington. Many states have merger notification requirements for certain industries, but Washington is the first state to enact a merger reporting policy that applies to all industries and includes significant penalties for noncompliance.

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