Possible Clues:

• Abbr. on many food labels
• Food label abbr
• Abbr. before a date on a pkg.
• Food pkg. abbr.
• 'Sell by' info (abbr.)
• Abbr. on food labels
• Rev. and ____
• Not loc., in transit listings
• Abbr. on a credit card
• Button abbr. on a scientific calculator