Brevet cards for DIY and ECE rides can be purchased online via PayPal from a number of organisers.
You can do this either directly from the event detail page, or from the BUY DIY CARDS HERE page (where you can purchase more than 1 card at a time).
You can do this for an ECE too, from the BUY ECE CARD HERE page.
The event detail pages are available by following the links on the permanent listings page.
Note: when buying brevet cards online you need to indicate if you want a physical brevet card. You need this if you are validating your ride with stamps / receipts.