The NPC type EC is an extended check.

Contents	Description	Data Type	Length
Transaction ID	Unique sequence number generated to keep track of transactions.	N	5
Check Number	Unique number assigned by CheckFree.	N	4
Transaction Code	A = Add C = Change D = Cancel	A	1
Payment Date	The date the Subscriber requested that this payment be made (YYMMDD).	N	6
Amount	The amount of the payment to be made, with 2 decimal places.	N	8
Merchant Name	Full Payee name.	A/N	32
Merchant Addr 1	Payee address, line 1.	A/N	32
Merchant Addr 2	Payee address, line 2.	A/N	32
Merchant City	City of Payee.	A/N	20
Merchant State	State of Payee.	A	2
Merchant Zip	11 digit ZIP Code.	A/N	11
Merchant Phone Number	Phone number of Payee.	A/N	10
Merchant Account	The account number from the latest bill paid for this Payee.	A/N	22
Voucher line data	Variable data. There can be up to 16 "voucher line data"/"voucher line amount" pairs.	A/N	100 max
Voucher line amount	Amount with 2 decimal places. Negative amounts contain "-" in the left-most position.	N	8
Record Terminator	CR/LF	A	2