License is any right, freedom or privilege granted to a prisoner which would ordinarily be forbidden to them under the terms of their incarceration. Being on a weekend pass, leave to attend a wedding or a funeral are all examples of license. Parole is an early release from prison before termination of the period of sentence. Lifers do not get parole, they can only be on license. License terms are usually much stricter than parole, a person may be forbidden from returning to the place of the crime, they may be forbidden from partaking in otherwise legal activities (like alcohol consumption) and its a lot easier to get recalled.
So to answer your question, all parole is license, not all license is parole.
Premeditated or planned murder, murder of a law enforcement officer or of a witness in a criminal trial, murder in the course of rape or aggravated robbery, murder in furtherance of a conspiracy, muti murder, and murder in connection with witchcraft, all get life.
All other murders get 15 years for a first offence, 20 for a second offence, and 25 for a third offence.
Generally speaking, parole can be considered after half the sentence is served, or 25 years in the case of a life sentence, but the sentencing court can set a different “non-parole period”.
I think I’ve come up with a possible trail here. My second definition of “tariff” could imply a schedule or chart or “menu” of pricing for services. And if there’s a schedule or chart for criminal sentencing, then I could see how “tariff” can make that journey.