I took and passed the Idaho exam in 1977. It only cost $10 a year, including the test.
Back then it was administered by the state building inspector at the Boise town hall. He gave us a 100 question test to complete in 3 hours, listing our answers on a yellow pad of paper. It was open book, using the NEC. No other references were allowed, but there were several theory questions.
I'll bet it is a little different today.
