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AUC Decoder

Decode EMV Tag 9F07 — Application Usage Control — bit-by-bit per EMVCo Book 3

🔍 Input

Enter a 4-character hex string (2 bytes). Spaces are OK.

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📖 About This Tool

What is the Application Usage Control Decoder?

The AUC Decoder interprets Application Usage Control (EMV Tag 9F07), a 2-byte value that specifies the geographic and transaction type restrictions for an EMV application.

🛠️ How to Use
  1. Enter the 4 hex character AUC value (Tag 9F07).
  2. Click Decode to see the usage restrictions.
❓ FAQ

What does AUC control?

AUC (Tag 9F07) specifies where and how a card application can be used: domestic vs international transactions, cash vs goods/services, cashback allowed, and ATM vs POS terminal restrictions.