TradLegNtfctnCxl
                Mandatory
                ClrMmb
                Mandatory
                ClrAcct
                Mandatory
                DlvryAcct
                Optional
                NonClrMmb
                Optional
                ClrDtls
                Optional
                SttlmNetgElgblCd
                Mandatory
                ClrSgmt
                Optional
                GrntedTrad
                Optional
                NonGrntedTrad
                Optional
                TradCtrPtyMmbId
                Mandatory
                TradCtrPtyClrMmbId
                Mandatory
                DlvrgPties
                Optional
                RcvgPties
                Optional
                Dpstry
                Mandatory
                Pty1
                Mandatory
                PtyId
                Mandatory
                AcctId
                Optional
                PrcgId
                Optional
                PrcgDt
                Optional
                Sub Account
SubAcct
                Optional
                Definition: Business relationship between two entities; one entity is the account owner, the other entity is the account servicer.
Type: SubAccount4
Mandatory
                Nm
                Optional
                Chrtc
                Optional
                CtctPrsn
                Optional
                Pty2
                Optional
                SctiesSttlmSys
                Optional
                TradLegDtls
                Mandatory
                SttlmDtls
                Mandatory
                SplmtryData
                Repetition (0..n)