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9
Calculated automatically.
The OPC barcode is also known as Optical Product Code, VCA Barcode, VCA OPC, Vision Council of America OPC Barcode.
The OPC is a 10-digit numeric code that identifies the product and the manufacturer. The structure of the OPC code is the following:
5 digits for Manufacturer Identification Number assigned by the Optical Product Code Council, Inc.
4 digits for Item Identification Number assigned and controlled by the optical manufacturer. The item identification number must be unique to each individual product.
1 digit for checksum which is automatically calculated by Barcody.
