The Triennial Strategic Research Plan (Plan) reflects a concerted effort to identify CARB’s highest priority research needs for the next three years. The research initiatives in the Plan build on past research and will support the implementation and development of policies and regulations, and advance the state of the science in the areas of health, environmental justice, air quality, and climate. The research initiatives in the Plan were developed in an open public process, in consultation with stakeholders and research partners, through a public workshop on January 26, 2018, individual meetings, and other outreach efforts. The research initiatives will guide CARB’s annual funding of individual research projects. Projects will be fulfilled through externally contracted research projects as well as in-house studies. The projects proposed for funding in Fiscal Year 2018-19 are contained in Appendix A of the Plan and projects proposed for funding in the Fiscal Year 2019-2020 are contained in Appendix B.