question for all you experiecned ref's

[forknif61]

I am a poor college student who has played soccer all his life, I go to a college that has no soccer team. So I was thinking about becoming a high school ref, and trying to ref or start out being a linesman at the local po dunk high school. I have a few questions I was wondering if anyone could help me out.

In order to ref in the MHSAA:
Do I have to take any certification classes?
Do I have to have prior refing experience?
What is the average pay for each game? or is it all volunteer?

Thanks for you help