If a fighter
has been inactive for over a year, he will be removed from the rankings, unless he has a fight officially scheduled. Once removed due to inactivity, a fighter cannot be reinstated until he has fought again.
Each fighter is ranked on the results they have achieved in their own specific weight division (excluding the pound-for-pound list).
Each fighter is ranked in the division in which their most recent significant fight took place. With regards to catchweight fights, common sense will (hopefully) prevail.
If a fighter fails a drug test, he will be removed from the rankings. He will be eligible for reinstation after completing a ban, but will be removed indefinitely if he reoffends.