Evaluating Systems

[doghead]

It has been a very long time since I've posted a question on this board. It's nice to be back! Here's my question...How do you go about evaluating officials within your group? Do all the officials get evaluations or is it "by request"? I live in Pennsylvania where officials are organized by "Chapters". Each chapter is responsible for professional development and evaluating/observing their own officials. Our chapter has no explicit module for evaluating our officials. So, I'm interested in knowing what other groups are doing with regards to this issue. Let me know...I've been appointed by my chapter to "research" the topic. Thanks in advance for your input.
Cheers!
Becky