The TERN data licensing project aims to make ecosystem research data openly accessible while respecting existing rights through a collaborative structure. The project involves reviewing TERN's requirements and existing licensing options to develop a data licensing policy and framework. This includes identifying data types, copyright issues, and user obligations. TERN data will be freely available under an open license, while non-TERN data access will be negotiated with data custodians under the least restrictive terms. The policy outlines preferred open licenses and a process for data sharing and licensing derivatives. Implementing the flexible framework requires engagement across diverse data sources and types.