Codex
this was the name used by Jaster Mereel to describe the new set of tenets and canons that he developed to oversee the new Mandalorian Mercs, several decades before the onset of the Clone Wars. The Codex was created to define the rules and roles of his new supercommandos, in an effort to unite the disparate clans of Mandalorian Mercs under a single leader. Although many followers of the Mandalorian codes agreed with Jaster and the Codex, many others - Vizsla and Montross among them - broke away from Jaster's band in protest over the new laws.