Hydrogen industry hype has ballooned in recent years with surging policy support and investment plans, owing to its purported climate, industrial competitiveness, and energy security potential. Yet many of these grand ambitions have recently been put at risk, creating confusion around the industry’s growth trajectory—and its implications for electric and gas utilities. We partnered with the Regulatory Energy Transition Accelerator (RETA) to get at the heart of what energy regulators should be thinking about to wrestle with this uncertainty and answer questions about hydrogen regulation. This paper pulls together insights from a collaborative process involving two global workshops and hundreds of comments from energy regulators from around the world. Our regulation roadmap identifies, organizes, and offers question and priority sets for key issue areas that fall within energy regulators’ purview.