California OHCA finalizes expanded health care transaction review rules
California OAL approved OHCA's updated AB 1415 regulations on October 2, 2026, expanding state review of material-change and corporate-practice-of-medicine transactions.
California's Office of Administrative Law approved OHCA's updated regulations on October 2, 2026, implementing Assembly Bill 1415 and expanding the state's health care transaction review program. Under the framework OHCA has administered since 2023, certain transactions — including material changes in clinical operations, hospital or physician group acquisitions, and corporate-practice-of-medicine arrangements involving licensed clinicians — are subject to notice and, in some cases, approval requirements.
Why sophisticated counsel should care: the changes land on an active deal pipeline. Private equity and health system buyers routing California assets through holding companies, management services agreements, or clinician employment models will need to re-run the notice analysis against the amended text, and the scope of what counts as a reportable material change or a qualifying transaction is where most structuring disputes arise. Health systems and physician groups face the same diligence burden on the sell side, and a missed notice obligation carries statutory consequences beyond the transaction itself.
Concrete action: map each pending California-relevant transaction against the amended regulations now, and confirm whether notice timelines restart from the effective date — the source excerpt does not state the effective date or the specific amended provisions, so those details should be checked against the approved text.