Article 99 Revised Penal Code
Article 99 of the Revised Penal Code is about Who grants time allowances. It is under Chapter Two (Partial Extinction Of Criminal Liability) of Title Four (Extinction Of Criminal Liability) of the Code.
Who grants time allowances
Whenever lawfully justified, the Director of Prisons shall grant allowances for good conduct. Such allowances once granted shall not be revoked.
See also: Article 98 Revised Penal Code