The FPAA form is required for each federally funded project

. The primary function of this form is to obligate federal funds for the project by phases. By completion of the FPAA, federal funds are authorized through an agreement between FHWA and TxDOT for reimbursement of eligible costs. The FPAA is required prior to TxDOT issuing a State Letter of Authority (SLOA) (see ) for each phase of a project that includes federal funds.