Just like counterparts in the Premier League , a total of 12 Championship referees have become full-time professional.
A further six have become part-time professional.
This had been made possible by the Championship clubs which have each chipped in with £50,000 to pay for the initiative.
Before being appointed, the 18 individuals underwent rigorous testing on a range of subjects, including the Laws of The Game, personal fitness and how to deal with sometimes-obstreperous players and managers.
They will be in the so called Select Group 2 and form the second tier to their Select Group 1 league colleagues who referee in the Premier League.
They 18 are: