There are no actual errors here, but the 'is to be' phrase sounds a little awkward. This is quite a formal construction, and it doesn't sit comfortably in the sentence. How you change it would depend on the nuance of what you want to say: needs to be? has to be? is about to be?

Thanks.

"...must be..."

Мне нужно сказать "подлежит проверке".

What about 'is going to be'?