I am just now starting to look up per diem rates per the government website but I am confused. For example I am looking at http://www.gsa.gov/portal/category/100120This is for Santa Barbara where I just worked. I was there in July. So according to this, the number under July is 180. So what exactly does that number mean? Then meals is over at the end for 66, what does that mean?Thanks for the responses!