Everton have told supporters they could have their season tickets revoked or face lifetime bans if they do not comply with the club's guidelines around fan behaviour.
The Blues have issued a new statement regarding the issue after Tuesday evening's 4-1 home defeat to Brighton & Hove Albion ended in difficult fashion with a smoke bomb thrown onto the pitch.
But the message also covers a range of other potential issues including pitch invasions, throwing of items and harassment.
