Related Clues:

• Price lines?
• They're read while shopping
• Scanning target
• Supermarket reading
• Product ID
• Drinker's rule of conduct?
• Product lines?
• Scanner reading
• Supermarket lines?
• Product-label ID
• Scanner target
• Sot's rule of conduct?
• It's machine-readable
• Checkout lines?
• Pattern of stripes containing information for computer processing