What is CVD/CID?

To help ensure the security of your credit card transaction, the Maine Turnpike Authority requires that you enter your card's verification number.

The Visa verification number is a 3-digit number printed on the back of your card. It appears after and to the right of your card number.

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The MasterCard verification number is a 3-digit number printed on the back of your card. It appears after and to the right of your card number.

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The American Express verification number is a 4-digit number printed on the front of your card. It appears above your card number, on either the right or left edge of the card.

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The Discover Card verification number is a 3-digit number printed on the back of your card. It appears after and to the right of your card number.

Location of card verification number graphic