Expiration dates can be hard to locate on a product and even more challenging to decipher. Currently, the United States does not have a regulated or standard system for coding expiration dates on food, except for those on baby food and infant formula. All other dates and codes are added voluntarily by manufacturers. Whether you’re a consumer who is interested in determining when the product that you want to buy is going to expire, or a grocer who is taking initiative to track expiration dates, learning how to read different types of expiration date codes is an important skill.