The code is a mystery to me. I asked Cubex about it and they said call with the number and they will give me a date. The number they use is on the plastic wrap on the skid though not the pellet bag "last I knew". I have tried to figure it out on my own because the driver told me they were put on the truck from the production line one day but it is a mystery as to how the number equaled a day of the year. Sorry