Rotherham United have issued the following statement ahead of the game on Saturday, as the Spireites make their first trip to New York Stadium.
The game is currently set for a sell-out for what promises to be a great local derby with a fantastic atmosphere from both sets of supporters.
The club would like to reiterate that the away supporters allocation of 2,300 tickets is completely sold out and there will be no tickets available on the day.
Chesterfield fans must not buy tickets in the home areas and anyone found doing so will be ejected and their details will be passed to South Yorkshire Police and Chesterfield FC.
Chief executive Chris Turner said: "Our supporters who travel always represent our club in a professional manner.
"Their support away from home has been fantastic and the players and management really appreciate it.
"On Saturday at Rotherham we are travelling with exceptional numbers, and the club asks that everybody travels to enjoy the occasion and to represent the club in their usual manner.
"Anyone who lets the club down, in any shape or form, will be dealt with in the same way as a supporter who misbehaves at the Proact.
"Lets have a great day out and enjoy the match."