The Safe Streets and Roads for All (SS4A) grant program aims to improve roadway safety by reducing or eliminating roadway fatalities and serious injuries. The program provides funding for two main types of grants: Planning and Demonstration Grants and Implementation Grants. Planning and Demonstration Grants support the development of comprehensive safety action plans, supplemental safety planning, and demonstration activities. Implementation Grants fund the implementation of projects and strategies identified in an Action Plan. Eligible applicants include metropolitan planning organizations, political subdivisions of a State or territory, federally recognized Tribal governments, and multijurisdictional groups of entities. Key aspects of the opportunity include: * Developing comprehensive safety action plans to prevent roadway fatalities and serious injuries * Conducting supplemental safety planning to enhance an Action Plan * Carrying out demonstration activities to inform the development of an Action Plan * Implementing projects and strategies identified in an Action Plan * Providing funding for planning, design, and development activities for projects and strategies * Requiring applicants to have a qualifying Action Plan to apply for Implementation Grants * Encouraging applicants to consider equity, engagement, and collaboration in their applications * Requiring award recipients to report on their progress and outcomes, including the costs of each eligible project and strategy, roadway safety outcomes, and benefits to underserved communities.