The club are in favour of rail seating in parts of the ground and recently conducted a feasibility study following changes to the Sports Ground Stadium Authority Green Guide.
Minutes from the United fans' forum on January 31 read: "A formal proposal was made to the local Safety Advisory Group in December 2019 to request a trial in a small section of the stadium (up to 1,500 seats in the North East Quadrant).
"Our belief is that the introduction of rail seating will enhance spectator safety in areas of the stadium where - as with other clubs - we have seen examples of persistent standing.
"The SAG committee is reviewing the request. This is not an automatic approval process. We will discuss the proposal in detail with the relevant authorities and will work through their compliance and review processes."