On September 11, 2026, California’s Office of Health Care Affordability (OHCA) Department of Health Care Access and Information (HCAI) released advance notification of proposed emergency regulatory action (the “Proposed Emergency Regulations”) regarding material change health care transactions. The Proposed Emergency Regulations—subsequently submitted to the state’s Office of Administrative Law (OAL)—further implement California’s AB 1415[1] respecting state oversight of private equity (PE) groups, hedge funds, and management services organizations (MSOs) operating in the health care space. As EBG wrote at the time of signing in 2025, AB 1415, which took effect January 1, 2026, represented a significant change for PE groups, hedge funds, and MSOs in the state by expanding OHCA’s notice requirements.
[1] Cal. Stats. 2025, ch. 641
On October 11, California Governor Gavin Newsom signed AB 1415, which regulates private equity and hedge fund activity by expanding the Office of Health Care Affordability’s (OHCA) jurisdiction and notice requirements. Though the law is a compromise from last session’s AB 3129—which the Governor vetoed on September 28, 2024—it nevertheless represents a significant change for private equity groups, hedge funds, and management services organizations (MSOs) in the state.
State governments are increasingly entering the field of health care market oversight and enforcement. In what was once an issue typically left to the federal government, state governments are looking for ways to regulate market activity in the health care industry as a way to stem increases in health care costs. Late May brought yet another example of what the future may offer in this regard.
An increasing number of states are requiring advance notice of health care transactions. These requirements may delay transactions or result in confidential information becoming accessible to the public. Effective August 1, 2023, New York[1] enacted legislation that requires health care entities involved in material transaction(s) to provide written notice to the New York Department of Health at least 30 days prior to the closing of the transaction. In enacting the legislation, New York joined Connecticut[2], Massachusetts[3], Nevada[4], Oregon[5], Rhode Island[6], and ...
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