The important thing to note in your question is that multiple chapters are under one FEIN with an IRS 501c3 group designation. Multiple chapters could not apply under the same EIN#. But you could have a proposal that incorporates a multi-location project. In that case, you would need to have a lead organization. Per the RFP, section 2.1.3: More than one organization may partner in a single application, but one organization must be designated as the lead applicant, recipient, and manager of award funds. The lead applicant will be required to submit letters from the partnering organizations confirming their participation in the proposed local model. The same applies for one organization with multiple geographic regions.
This project #90CCDG0002 is supported by the Administration for Community Living (ACL), U.S. Department of Health and Human Services (HHS) as part of a financial assistance award totaling $10,364,463 with 75 percent funded by ACL/HHS and $3,458,052 or 25 percent funded by non-government source(s). The contents are those of the author(s) and do not necessarily represent the official views of, nor an endorsement, by ACL/HHS, or the U.S. Government.