12 C.F.R. § 561.51 Subordinated debt security.
Title 12 - Banks and Banking
The term subordinated debt security means any unsecured note, debenture, or other debt security issued by a savings association and subordinated on liquidation to all claims having the same priority as account holders or any higher priority.
Title 12: Banks and Banking
PART 561—DEFINITIONS FOR REGULATIONS AFFECTING ALL SAVINGS ASSOCIATIONS
§ 561.51 Subordinated debt security.