See section 4(c) of the Small Business Administration’s Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Program Policy Directive (effective May 3, 2023) for guidance on examples of SBIR/STTR phase III, which is available at https://www.sbir.gov/sites/default/files/SBA%20SBIR_STTR_POLICY_DIRECTIVE_May2023.pdf.