This is the new MLex platform. Existing customers should continue to use the existing MLex platform until migrated.
For any queries, please contact Customer Services or your Account Manager. Dismiss

State 'mini-HSR' filings place burden on attorney general offices

By Wesley Brown ( March 26, 2026, 20:06 GMT | Insight) -- Premerger notification filings provided to US states are creating friction in attorney general offices that must cope with a large influx of documents on top of normal enforcement. Colorado and Washington in mid-2025 became the first states to receive federal HSR forms from merging parties that have ties to the states. California enacted similar legislation that will go into effect on Jan. 1, 2027, while other states continue to weigh Uniform Law Commission-drafted legislation.Premerger notification filings provided to US states are creating friction in attorney general offices that must cope with a large influx of documents on top of normal enforcement....

Prepare for tomorrow’s regulatory change, today

MLex identifies risk to business wherever it emerges, with specialist reporters across the globe providing exclusive news and deep-dive analysis on the proposals, probes, enforcement actions and rulings that matter to your organization and clients, now and in the longer term.


Know what others in the room don’t, with features including:

  • Daily newsletters for Antitrust, M&A, Trade, Data Privacy & Security, Technology, AI and more
  • Custom alerts on specific filters including geographies, industries, topics and companies to suit your practice needs
  • Predictive analysis from expert journalists across North America, the UK and Europe, Latin America and Asia-Pacific
  • Curated case files bringing together news, analysis and source documents in a single timeline

Experience MLex today with a 14-day free trial.

Start Free Trial

Already a subscriber? Click here to login