Pictured is an example of a blank Form 809, Posting Voucher, Part 1, processed with Document Codes 17 or 18. Both the 05/2009 and 03/1991 revisions are shown. Added to the blank form are the Section 01 Alpha Field Designators (AFD) that are used in the revenue receipt program to process this form. The AFDs listed are: 01NC, Name Control.01TIN, Taxpayer Identification Number.01TXP, Tax Period.01MFT, MFT Code.01TDT, Transaction Date.01TC, Primary Transaction Code.01TA>, Primary Transaction Amount (C/Gen, Non-Correctable)01STC, Secondary Transaction Code.01SA>, Secondary Transaction Amount (C/Gen, Non-Correctable)01TTC, Tertiary Transaction Code.01TT>, Tertiary Transaction Amount (C/Gen, Non-Correctable)01BPI, Bypass Indicator.01MSC, Multi-Split Remit Code