In 2013 California passed legislation that expanded the pool of eligible aspiration abortion providers to include advanced practice nurses, nurse-midwives, and physician-assistants. This law, enacted in 2014, is based on evidence generated by the Health Workforce Pilot Project #171, which examined the safety and effectiveness of aspiration abortion care provided by these clinicians as well as patient acceptability and satisfaction. This evidence and the resulting policy change build on international research and established workforce strategies used to expand access to safe abortion services for women worldwide, representing a radical departure from the legislative trend of constricting access in the United States.