The EFL has outlined its intention to tackle the growth of "unacceptable" anti-social behaviour in the game, with a threat of increased police action and a strong 'stay away' message.
This season has been marred by regular accounts of offensive chants, pitch invasions, fans throwing objects and abuse on social media.
"Any form of anti-social behaviour is unacceptable," said an EFL statement.
"Those intent on causing trouble are not welcome at our matches."
Among this weekend's main off-field issues were offensive chants by MK Dons fans at Wycombe striker Adebayo Akinfenwa, objects thrown at the assistant referee in front of Rotherham fans at Crewe, and West Bromwich Albion fans throwing smoke flares on the pitch during their 2-0 defeat by Millwall.