The 10-character Additional Terminal Capabilities field contains the POS terminal input and output capabilities.

The 12-character numeric Amount, Authorised (Numeric) contains the authorized amount of the transaction. In the authorization request message this is the amount used by the chip card when calculating the Application Cryptogram. It must contain numeric right-justified data with leading zeros.

If the transaction includes a cashback amount, the Amount, Authorised (Numeric) includes the purchase amount plus the cashback amount.

The 12-character numeric Amount, Other (Numeric) contains the cashback amount used by the chip card when calculating the Application Cryptogram. It must contain numeric right-justified data with leading zeros.

If the transaction does not include a cashback amount, the Amount, Other (Numeric) field must be all zeros.

The 16-character Application Cryptogram contains the cryptogram returned by the chip card in response to the Generate AC command.

The 4-character Application Interchange Profile indicates the capabilities of the chip card to support specific functions in the application.

The mnemonic associated with the AID according to the ISO/IEC 7816-5.

The mnemonic associated with the AID.

The 2-character numeric Application PAN Sequence Number contains a counter maintained and supplied by the chip card. This field identifies the card when multiple chip cards are associated with a single account number.

If the chip card does not contain an Application PAN Sequence Number, then the Application PAN Sequence Number value subfield must be set to 00.

The 4-character numeric (binary) Application Transaction Counter contains the counter value maintained by the chip card. The chip card increments this value for each transaction (including failed transactions).

The 4-character Application Usage Control indicates the Issuer’s specified restrictions on the geographic usage and services allowed for the chip card application.

The 4-character Application Version Number (ICC) is the version number of the chip card application.

The 4-character Application Version Number (Terminal) is the version number of the POS terminal payment application.

The 4-character Authorisation Response Code is generated by the issuer and returned in the authorization response message. The most commonly used authorisation response codes are online approval (00), online decline (05), and referral (01). The POS terminal must not alter the Authorisation Response Code value. The POS terminal generates an authorisation response code in the following conditions:

• Y1 - Offline approved
• Z1 - Offline declined
• Y3 - Unable to go online (offline approved)
• Z3 - Unable to go online (offline declined)

The 6-character Cardholder Verification Method (CVM) Results indicate the results of the last CVM performed.

The 2-character Cryptogram Information Data indicates the type of cryptogram generated (TC, ARQC, or AAC), why the cryptogram was generated, and actions that the chip card instructed the POS terminal to perform.

The 16-character Interface Device (IFD) Serial Number contains a unique and permanent identification number assigned to the IFD by the manufacturer.

A 10-character Issuer Action Code – Default specifies the issuer’s conditions that cause a transaction to be rejected when the POS terminal is unable to process the transaction online (even when the transaction has already been approved online).

A 10-character Issuer Action Code – Denial specifies the issuer’s conditions that cause the denial of a transaction without an attempt to go online.

A 10-character Issuer Action Code – Online specifies the issuer’s conditions that cause a transaction to be transmitted online.

The 4-character numeric Issuer Country Code indicates the country of the issuer according to ISO 3166.

A 2-character POS Entry Mode field indicates the method by which the PAN was entered, according to the first two digits of the ISO 8583:1987 POS Entry Mode.

A 10-character Terminal Action Code – Default specifies the acquirer’s conditions that cause a transaction to be rejected when the POS terminal is unable to process the transaction online (even when the transaction has already been approved online).

A 10-character Terminal Action Code – Denial specifies the acquirer’s conditions that cause the denial of a transaction without an attempt to go online.

A 10-character Terminal Action Code – Online specifies the acquirer’s conditions that cause a transaction to be transmitted 

The 6-character Terminal Capabilities indicates the card data input, the cardholder verification method (CVM), and the security capabilities supported by the POS terminal.

The 4-character numeric Terminal Country Code indicates the country of the terminal, represented according to ISO 3166.

The 2-character numeric Terminal Type indicates the environment of the POS terminal, its communications capability, and its operational control.

The 10-character Terminal Verification Results (TVR) contains a series of indicators set by the POS terminal recording both offline and online processing results.

The 4-character numeric Transaction Currency Code contains the currency code of the transaction according to ISO 4217.

The 6-character numeric Transaction Date contains the local date used to generate the cryptogram. The Transaction Date is in the format YYMMDD.

The 4-character Transaction Status Information contains the functions performed in the transaction.

The 6-character numeric Transaction Time subfield contains the local time that the transaction was authorized.

The 2-character numeric Transaction Type indicates the type of financial transaction as represented by the first two digits of the ISO 8583:1987 Processing Code.

The 8-character numeric (binary) Unpredictable Number is randomly generated by the POS Terminal and is used to provide variability and uniqueness to the cryptogram.

A 10- to 32-character Application Dedicated File (ADF) Name is used to address an application in the chip card.

An ADF Name consists of a registered application provider identifier (RID) of 5 bytes, which is issued by the ISO/IEC 7816-5 registration authority. This is followed by a proprietary application identifier extension (PIX), which enables the application provider to differentiate between the different applications offered.

The ADF Name is obtained during the application selection process. Previous versions of the EMVCo specifications refer to this tag as Application Identifier (AID) – ICC.

The 10- to 32-character Application Identifier (AID) – Terminal is used to address an application in the chip card.

An AID consists of a registered application provider identifier (RID) of 5 bytes, which is issued by the ISO/IEC 7816-5 registration authority. This is followed by a proprietary application identifier extension (PIX) which enables the application provider to differentiate between the different applications offered. The AID is obtained during the application selection process.

The up to 64-character variable length Customer Exclusive Data contains issuer proprietary data for transmission to the issuer.

The 10- to 32-character Dedicated File Name identifies the name of the Dedicated File as described in ISO/IEC 7816-4.

FORM FACTOR INDICATOR (FFI)
The 8-character Form Factor Indicator indicates the form factor of the consumer payment device and the type of contactless interface over which the transaction was conducted. The Form Factor Indicator is both an implementation and issuer option.

PAYPASS THIRD-PARTY DATA
A 10- to 64-character PayPass Third-Party Data subfield contains proprietary data from a third party. The PayPass Third-Party Data value subfield is formatted in -coded binary format.

The 4- to 16-character ICC Dynamic Number is a time-variant numerical value generated by the chip card.

The up to 64-character Issuer Application Data contains proprietary application data for transmission to the issuer.

The up to 40-character Issuer Script Results contains the results of the card issuer script update to the chip card.

The Issuer Script Results value subfield is formatted in coded binary format. Conversion from to coded binary is dependent on the kernel API.

The 4- to 8-character numeric (binary) Transaction Sequence Counter uniquely identifies each transaction on a POS terminal.