The Code of Chivalry is a list of rules in which the dragon knights have sworn to follow. It is constantly being added onto and revised by King Allfire. The Chancellor writes lines for him when he comes up with them. In Season 2 he seems to be replaced by Princess Flame (which is ironic in that she often finds some of the lines to be ridiculous). Suggestions can be placed in the suggestion box. This is how Count Geoffrey got King Allfire to add in a rule to not harm rabbits, which nearly brought about the downfall of Camelhot. At one point, Allfire was considering rewriting the entire code.