The website version of the Rulebook acts at all times as the definitive version of the Rulebook. CBB tries to limit changes as much as possible, in order to minimise the compliance burden on licensees. The updates are posted to the CBB website, together with a summary of changes for that quarter. Licensees are in addition e-mailed the summary of each quarter's changes. Hard-copy users are required to print off the updated pages from the website to incorporate in their Rulebook in order to keep it current.