Overview

• Governor Gavin Newsom signed AB 1415 on October 11, 2025, with the law taking effect January 1, 2026.
• Private equity groups, hedge funds, MSOs, newly formed deal vehicles, and entities that own or operate providers must now give OHCA at least 90 days’ notice for material transactions and submit required data.
• OHCA may issue a waiver or conduct a Cost and Market Impact Review that can delay closing, though the office lacks explicit authority to block deals.
• AB 1415 codifies definitions for private equity groups, hedge funds, and MSOs, and adds Section 127501.5 directing OHCA to set MSO data‑submission requirements.
• Implementation details remain pending OHCA rulemaking, which is expected to clarify notice content, materiality thresholds, and eliminate duplicative reporting, following separate enactment of SB 351 last week.