As I write my proposal to an outside sponsor, what should I request from the proposed Subcontractor?

When a subcontract is part of the UW PI's project, the UW PI in conjunction with the PI at the subcontracting institution (Subcontractor) will need to develop a work plan for the project. The Subcontractor PI will prepare a proposal with a work scope, budget and budget justification. That proposal must be approved by the authorized business official of the Subcontractor Institution on either a Letter of Intent (LOI) or signed PHS398 Face Page, and all four documents submitted to the UW PI for incorporation into the UW proposal.