This Notice of Funding Opportunity (NOFO) is the third issued under the Public Wireless Supply Chain Innovation Fund (Innovation Fund). The Innovation Fund is an NTIA-administered competitive grant program that seeks to accelerate the development, deployment, and adoption of open and interoperable radio access networks (RAN). In this third NOFO, NTIA will invest in software solutions to further drive Open RAN adoption. Software design is a specific strength of U.S. innovation, and NTIA hopes that this software-centric third NOFO will elicit broad interest from the tech community. Through these awards, NTIA aims to identify and validate new Open RAN-enabled revenue streams, while reducing the cost and complexity of multi-vendor integration. These efforts will help expand market opportunities for suppliers and operators, in turn facilitating Open RAN adoption in upcoming equipment buying cycles and beyond.