This part provides the criteria and procedures for determining and declaring substantial default by a public housing agency (PHA) and the actions available to HUD to address and remedy substantial default by a PHA. Nothing in this part shall limit the discretion of HUD to take any action available under the provisions of section 6(j)(3)(A) of the 1937 Act ( 42 U.S.C. 1437d(j)(3)(A) ), any applicable annual contributions contract (ACC), or any other law or regulation that may authorize HUD to take actions against a PHA that is in substantial default.
24 C.F.R. § 907.1