"Decision: No direction for release on parole licence and no recommendation for transfer to an open prison," the UK Parole Board said in a summary, following a series of oral hearings on the case.
The panel concluded that he "genuinely wants to progress and that he is motivated to work towards his release" but his history of "persistent rule breaking" suggested that he might not have the skills to manage his violent tendencies outside of prison.
"He lives his life rigidly by his own rules and code of conduct and is quick to judge others by his own standards … It is unclear whether the strong external controls of custody are mainly responsible [for his progress] or whether his attitudes have genuinely changed," it said.
Bronson has served much of his jail time in solitary confinement, a British TV channel reports. He has a record of violent offenses committed while in custody, raging from attacks on staff and inmates to 11 hostage-takings in nine different sieges. He insists he is now reformed after finding solace in art.