It was directly out of my notes from ground school which was at compass 7 years ago, maybe they fixed the issue?

Also something else I have written down that I’m curious to confirm.

Is the Max fuel imbalance in flight on the 145 around 800 pounds? The fuel imbalance on the ERJ175 is 794 pounds, it was mentioned that the 175 doesn’t actually have a fuel imbalance issue, it can literally fly with fuel only in one wing.

When Embraer went for approval it was noticed that they did I not have a limitation for fuel imbalance on the 175, they were told they needed one for approval.

So naturally they used the 145 max fuel imbalance.