The CL-65 is the type designator for the CRJ-200 and 700. In the US, we refer to the 700 as the CRJ-70, and the Avro as the ARJ-70. That's why I was a bit confused at the beginning of this thread when the mention was only RJ-70.
Seeing that I don't have a clue about the Avro (except I love riding in it as a passenger), I'll butt-out.
Now, if you want to know about the Canadair Reset Jet (CRJ), I have expertise on that subject.