AGENCY: Office of the Assistant Secretary for Research and Technology (OST-R), U.S. Department of Transportation (USDOT or the Department)ACTION: Notice of Funding Opportunity (NOFO), Assistance Listing (CFDA) #20.941SUMMARY: The purpose of this notice is to solicit applications for Stage Two Strengthening Mobility and Revolutionizing Transportation (SMART) grants. Funds for the fiscal year (FY) 2024 SMART Grants Program are to be awarded on a competitive basis to prior 2022 Stage One recipients in order to implement the plans and prototypes previously developed in Stage One that will advance smart city or community technologies and systems to improve transportation efficiency and safety.Only recipients of SMART Stage One Planning and Prototyping Grants, or eligible entities designated by Stage One SMART recipients, awarded under the FY22 SMART Stage One NOFO, may apply for this Stage Two Implementation Grants.For this Notice of Funding Opportunity, the Draft Implementation Report completed by each Stage One Recipient will be assessed. Any applicant that is not required to submit a Draft Implementation Report between July-September 2024, as their period of performance began after October 1, 2023, will not be eligible to respond to this Notice of Funding Opportunity. US DOT anticipates multiple additional Stage Two NOFOs will be released in 2025 and 2026 which other SMART Stage One recipient will be eligible to apply for.