Local governance plays a pivotal role in ensuring data sharing and interoperability for Local Digital Twins (LDTs). Technology alone cannot achieve the desired outcomes without strategic leadership and policies. Risks like fragmentation or underutilization threaten LDTs without a focus on public values and clear governance responsibilities. The challenge of data sharing in LDTs is addressed by establishing local government frameworks, such as dedicated roles and strategic governance frameworks. These frameworks help align diverse technological efforts, harmonize data standards, and create a robust infrastructure, ensuring semantic and conceptual interoperability across urban data spaces. This learning unit explores local government roles in LDTs, emphasizing strategic governance, standardization, and public data sovereignty. Topics include defining data governance roles, fostering semantic integration, encouraging participatory governance, and developing continuous improvement systems, all vital for robust and equitable LDT implementation.