When the FO/PSC/TSC transmits a stop code of “B” (NRT = 1 or NC code B), the RFC will screen the claim and issue a courtesy disbursement
if a check for the amount reported was issued and if the original check has not been
returned. The claim is then sent to CCB for processing. If the check has not been
presented for payment (outstanding), CCB cancels the original check and uses the “credit” to fund the courtesy disbursement check.
When the FO/PSC/TSC transmits a stop code of “C” (NRT = 2 or NC code C), the claim goes to the RFC first to determine if the original
check was returned, if the check was issued, and to provide the check number and symbol.
Then the RFC sends the claim to CCB who investigates to determine if the original
check has been cashed and presented to DT for payment. If the check has not been negotiated,
CCB cancels the original check, and notifies the RFC to issue a replacement check.
The “credit” for the cancelled original check is used to fund the replacement check.
When the FO/PSC/TSC transmits a stop code of “G” (NRT = 4 or NC code G) and the original has not been cashed, a credit is returned
to SSA. The check can be reissued, if still due.