Fans will face body searches at the turnstiles, alcohol restrictions, postmatch segregation and a "robust policing plan'' as part of measures aimed to minimise crowd trouble when West Ham host Chelsea in the EFL Cup.
Chelsea have been allocated just under 5,200 tickets for Wednesday night's fourth-round tie at London Stadium, which has been designated as a high-risk fixture given the history of animosity between the two sets of fans.
West Ham moved from Upton Park into the converted Olympic Stadium for the start of the new season.
There have been instances of disturbances in the stands during some Premier League fixtures, including against Watford and Middlesbrough.