The following Definer Codes are valid with CC BMFOL:A - Adjustment transactions for the specified tax module.B - Used to restore Recoverable Retention Register (RRR) tax modules back to the active BMF Master File.E - Posted entity transactions as well as various indicators and freeze codes for the specified TIN, including cross-ref TIN.H - Help ScreenI - Index of all tax modules (on-line or off-line) for the specified TIN.L - Last tax module satisfied for the specified TIN.O - Requests the BMF Exempt organization data for the specified EINR - Posted return for the specified tax module.S - Status history data for the specified tax module.T - Posted transactions and various other data for the specified tax module.U - Combined Annual Wage Reporting (CAWR) information for the specified tax module.V - Vestigial section of the entity which indicates specified tax modules have been aged off to the retention register.Z - Audit history data of the specified TIN.