Definition of Qualified Surety
Rev. Proc. 2016-33, section 1.01(9)
(9) The term “qualified surety” means a surety that meets the requirements of § 301.7705-2T(g)(6).
§301.7705-2T(g)(6)
(6) Requirements for surety. Any surety that issues a bond required by this paragraph (g) to a CPEO must be a surety company that holds a certificate of authority from the Secretary as an acceptable surety on federal bonds and meets such other requirements as the Commissioner may prescribe in further guidance.