The definitions in the following Regulations apply for purposes of Sections 16.1 through 16.5: § 1.436-1(j)(1) defining adjusted funding target attainment percentage; § 1.436-1(j)(2) defining annuity starting date; § 1.436-1(j)(6) defining prohibited payment; § 1.436-1(j)(8) defining section 436 measurement date; and § 1.436-1(j)(9) defining an unpredictable contingent event and an unpredictable contingent event benefit.