2 FOOD FACTS How to RE-REGISTER after you get your Ration Book If you haven't got your new ration book, look out for the advertisements and posters telling you when and where to go. As soon as you get the new book you must re-register for milk and other foods as described below. (1) Write your address on the front cover, and your name, address and National Registration number on the front cover of the clothing book. (2) Remove the clothing book and put it away in a safe place until you are told you can use it.