We are applying as a partnership; do we need to decide which organization will host our dataset, or is this something that we can determine after consulting with stakeholders?

This is dependent on the project and the expected outputs/outcomes and should be decided by the participating organizations (with a goal to best meet the business needs of all). And it is fair that there might be some specifics of the project that aren’t figured out yet, and will be decided through the course of the project; EPA recommends speaking to these future decisions in your project narrative (including how this decision will be ultimately be made) and ensuring that all information as requested under the technology sections is sufficiently addressed in your project narrative (‘Technical Solutions and Data Availability’, ‘Project Alignment with the E-Enterprise Digital Strategy (EEDS)’, etc.).