Where you go from Quarantine is determined by several factors, including your sentence length, your crime (in some cases), your home region, your prior prison or jail conduct, and where your known enemies or co-defendants are housed.
Prisoners with sentences of more than seven years start out in a level four prison. Only level five is higher in security and this is reserved for prisoners who have attempted escape, or severely assaulted staff and in some cases other inmates. A fight will usually not do it, it has be more serious.
Prisoners must stay in a level four prison until they have less than seven years on their sentence, or they served three years in a level four. To transfer to a lower (less restrictive) level you must have not accumulated too many points by catching tickets for misconducts. Too many or any serious misconducts will keep you in a level four.
Those requiring a single cell designation because of their crime or predatory behavior while in prison will remain in a level four prison until that designation is removed (often many years).
Prisoners with more than three years, but less than seven start out in a level two prison (there's no level three anymore), and those with less than three start in a level one prison. Each level has different levels of restrictions and different access to DOC programming and various privileges.
Next time... the levels defined.
