2 meter band plan question

[kc7jty]

This might be a question for the magnificent ZED.

OK, then! Let me know how that works out for ya ...

It met with quite a largely attended response, giving me some enlightenment into the history of FM and 2 meters.
In the end however I was right and Washington, Idaho, and Montana are 20 khz spacing states according to the almighty ARRL repeater handbook.
In this area 146.56 is a le-jit simplex freq.