‹ CBB Rulebook: Launch of Volume 5 Common Modules for Trust Service Providers_30 April 2013 The official adoption of the GCC States Identity Card_24 March 2013 › The official adoption of the GCC States Identity Card_27 March 2013 Click here to download the Letter in PDF format. ‹ CBB Rulebook: Launch of Volume 5 Common Modules for Trust Service Providers_30 April 2013 The official adoption of the GCC States Identity Card_24 March 2013 ›