Reviews HUDs systems for budgeting & accounting for Section 8 (S8) rental assistance funds. HUD administers its S8 program in 2 parts: tenant-based assistance & project-based assistance. This report focuses on the project-based assistance program. It determines whether HUDs systems ensure that unexpended S8 project-based funds do not reach unreasonable levels & that obligations are spent in a timely manner. In particular, it examines: the categories & amounts of unexpended rental assistance funds & the effectiveness of HUDs processes to evaluate unexpended S8 project-based balances, & are spent in a timely manner.