(a) Required documentation:

(1) Prior to the beginning of its fiscal year, a PHA shall prepare an operating budget in a manner prescribed by HUD. The PHA's Board of Commissioners shall review and approve the budget by resolution. Each fiscal year, the PHA shall submit to HUD, in a time and manner prescribed by HUD, the approved Board resolution.

(2) HUD may direct the PHA to submit its complete operating budget with detailed supporting information and the Board resolution if the PHA has breached the ACC contract, or for other reasons, which, in HUD's determination, threaten the PHA's future serviceability, efficiency, economy, or stability. When the PHA no longer is operating in a manner that threatens the future serviceability, efficiency, economy, or stability of the housing it operates, HUD will notify the PHA that it no longer is required to submit a complete operating budget with detailed supporting information to HUD for review and approval.

(b) If HUD finds that an operating budget is incomplete, inaccurate, includes illegal or ineligible expenditures, contains mathematical errors or errors in the application of accounting procedures, or is otherwise unacceptable, HUD may, at any time, require the PHA to submit additional or revised information regarding the budget or revised budget.